KR102203613B1 - Explosion-proof type camera system - Google Patents

Abstract

The present invention relates to an explosion-proof IP camera system with a high-capacity power over Ethernet (PoE) splitter, which connects an explosion-proof camera installed in a place classified as an explosive area, such as a power plant, a petrochemical plant, a tunnel, and the like, to a network to realize remote monitoring and control and, more specifically, to an explosion-proof IP camera system with a high-capacity PoE splitter, which uses a PoE injector and a PoE splitter to perform power supply and data communications with one Ethernet cable and stably bears power consumption of the explosion-proof camera due to a large rated voltage and rated capacity of the PoE splitter. According to the present invention, the explosion-proof IP camera system with a high-capacity PoE splitter comprises: the explosion-proof IP camera; a network switch supporting remote monitoring and control through data communications with the explosion-proof IP camera; a PoE injector connected to the network switch to support data communications and receiving power from the outside; and the PoE splitter connecting the PoE injector and the explosion-proof IP camera to support data communications and supplying the power to the explosion-proof IP camera, wherein the rated capacity of the power supplied by the PoE splitter is 75 W or more, and the maximum rated voltage is 24 V.

Description

Explosion-proof IP camera system equipped with high-capacity PoE splitter {EXPLOSION-PROOF TYPE CAMERA SYSTEM}

The present invention relates to an explosion-proof IP camera system capable of remote monitoring and control by connecting an explosion-proof camera installed in a place classified as an explosion risk area such as a power plant, a petrochemical plant, and a tunnel, etc., and in more detail, PoE Using an injector and PoE splitter, data communication and power can be supplied with one Ethernet cable, and the rated capacity of the PoE splitter is large and the rated voltage is large, making it an explosion-proof IP camera system equipped with a high-capacity PoE splitter that stably bears the power consumption of explosion-proof cameras. About.

Overall, the importance of security and safety is spreading, and detection systems using cameras such as CCTV are being used in various ways. The detection system using such a camera can be applied to various fields such as inspection of the state of production facilities and production processes, not only for detecting visitors/passers, and for facility protection.

In particular, a detection system for detecting production facilities and production processes is installed in a petrochemical plant, a gas handling place, a power plant or a boiler, a steel mill, a cement plant, a glass plant, etc. For example, in a petrochemical plant, a process in which a raw material or chemical product is produced as a fluid or a solid is detected, and in a gas handling place, an abnormality in a fuel storage tank is detected, or a gas generation and gas leaking place is detected. In a power plant or boiler, a flame or flame is detected, or whether there is an abnormality in the raw material transfer device. In other words, the monitoring system detects whether the facility is operating normally and whether the production of products is smoothly performed.

In facilities adjacent to such explosive and ignitable substances, explosions or large-scale fires may occur even by small sparks generated from electric devices. For this reason, the camera of the surveillance system uses an explosion-proof camera.

The explosion-proof camera of the surveillance system uses an explosion-proof IP camera that is connected to the network so that it can monitor and control remotely, and the explosion-proof IP camera has a communication cable for data communication and a power cable for power supply. In the prior art, it takes a lot of time, manpower, and cost by installing a communication cable and a power cable respectively.

For reference, general IP cameras use PoE (Power over Ethernet) injectors and PoE splitters that support both data communication and power supply through one Ethernet cable, but explosion-proof IP cameras do not use PoE frames and PoE splitters yet. Instead, separate communication cables and power cables are installed.

In addition, since explosion-proof cameras are generally installed in poor environments with a lot of foreign substances such as dust or chemicals, a lens module for photographing the front and a direction angle adjustment device for adjusting the shooting direction of the lens module (pan and tilt adjustment) Various electrical equipment is provided, such as an LED that can be photographed and a cleaning unit that removes foreign substances attached to the tempered glass in front of the lens module.

The maximum rated capacity of PoE splitters released to date is 30W or less, and the maximum energetic voltage is 18V, which is insufficient to bear the various electrical equipment provided in the explosion-proof camera. PoE released in the explosion-proof IP camera system equipped with a high-capacity PoE splitter. It is difficult to apply the splitter as it is.

As a prior art for an explosion-proof camera, Patent Registration No. 10-1895987 "Explosion-proof Camera Device" and Registration Patent 10-1678361 "Explosion-proof CCTV" have been disclosed.

The present invention is an invention conceived to solve the problem of the explosion-proof IP camera system according to the prior art, and data communication and power supply are made through a single Ethernet cable using a PoE injector and a PoE splitter, and installation time, manpower and cost In addition, PoE splitter provides an explosion-proof IP camera system with a high-capacity PoE splitter that can reliably bear the power consumption of various electric equipments equipped with explosion-proof cameras as the rated capacity is 75W or more and the maximum rated voltage is 24V. The purpose.

In addition, the lens module is equipped with an LED that illuminates the shooting direction, enabling long-distance shooting, clearer images can be obtained by washing the tempered glass, and watertightness has been strengthened to completely block the penetration of water by the washing water. Another object is to provide an explosion-proof IP camera system with a high-capacity PoE splitter.

Explosion-proof IP camera system equipped with a high-capacity PoE splitter according to the present invention for achieving this object

Explosion-proof IP camera;

A network switch supporting data communication with the explosion-proof IP camera to enable remote monitoring and control;

A PoE injector connected to the network switch to support data communication and receiving power from an external device;

In the explosion-proof IP camera system comprising a; PoE splitter supporting data communication by connecting the PoE injector and the explosion-proof IP camera, and supplying power to the explosion-proof IP camera,

The rated capacity of the power supplied by the PoE splitter is 75W or more, and the maximum rated voltage is 24V.

And the explosion-proof IP camera

A lens module for photographing the front side,

An LED illuminating the photographing direction of the lens module,

A housing in which the lens module and LED are mounted,

A tempered glass coupled to the front of the housing to cover the lens module and the LED,

A spray nozzle for spraying washing water on the tempered glass,

It characterized in that it comprises a wiper for washing the tempered glass,

And a sealing ring that is seated in a seating groove formed on the front surface of the housing and pressed against the tempered glass to seal a gap between the housing and the tempered glass,

The sealing ring includes a lip portion formed by protruding an arc-shaped corner portion of a square cross section, a fitting hole formed in the longitudinal direction at the center of the lip portions, and an insertion groove formed by opening to one side of the fitting hole, and seated in the mounting groove Using a quadring made of elastic material,

A circular elastic ring part in close contact with the inner circumferential surface of the fitting hole, a connection part connected to be inserted into the insertion groove by crossing an'X' shape at both ends of the elastic ring part, and a connection protruding from the outer end of the connection part than the lip part And it characterized in that it further comprises an elastic deformable member including a pressing portion placed on the floor in the seating groove.

The explosion-proof IP camera system with a high-capacity PoE splitter according to the present invention configured as described above enables data communication and power supply with a single Ethernet cable using a PoE injector and a PoE splitter, and the rated capacity of the PoE splitter is large and the rated voltage is large. The camera's power consumption is stably charged, and the explosion-proof IP camera can take a longer distance by illuminating the shooting direction, and the tempered glass can be cleaned with washing water to obtain a clearer image. It is a product that does not penetrate into the housing and is a very useful invention for industrial development.

1 is a view schematically showing the configuration of an explosion-proof IP camera system having a high-capacity PoE splitter according to the present invention.
2 is a perspective view of an explosion-proof IP camera according to the present invention.
Figure 3 is an exploded perspective view of Figure 2;
4 is a perspective view and an exploded perspective view showing the structure of a wiper.
5 is a view showing the structure and operating mechanism of the sealing ring.

Hereinafter, an explosion-proof IP camera system having a high-capacity PoE splitter according to the present invention will be described in more detail with reference to the drawings.

Before describing in more detail about the explosion-proof IP camera system with a high-capacity PoE splitter according to the present invention,

The present invention will be described in detail in the text of the bar, implementation (態樣, aspect) (or embodiment) that can apply various changes and can have various forms. However, this is not intended to limit the present invention to a specific form of disclosure, and it should be understood that all changes, equivalents, and substitutes included in the spirit and scope of the present invention are included.

In each drawing, the same reference numerals, in particular the number of tens and ones, or the same number of tens, ones, and alphabet indicate members having the same or similar functions, and unless otherwise specified, each of the drawings The member indicated by the reference number can be identified as a member conforming to these criteria.

In addition, the components in each drawing are expressed by exaggeratingly large (or thick) or small (or thin) or simplified the size or thickness in consideration of the convenience of understanding, but this limits the scope of protection of the present invention. It shouldn't be.

The terms used in the present specification are only used to describe specific embodiments (sun, 態樣, aspect) (or examples), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as ~include~ or ~consist~ are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance the possibility of being added.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

Referring to FIG. 1, the explosion-proof IP camera system having a high-capacity PoE splitter according to the present invention includes an explosion-proof IP camera 1 installed in the field, a network switch 2 installed in a management room, and a management server built on the Internet ( 3) It consists of a PoE injector (4) and a PoE splitter (5) that are installed in the management room and in the field, respectively, to connect the explosion-proof IP camera and the network switch.

The explosion-proof IP camera (1) photographs an image of a field, and the photographed image is stored in the management server (30) through a network switch (2).

The explosion-proof IP camera 1 adjusts the photographing direction by adjusting the pan and tilt, and zooms in and out so that the subject can be enlarged and photographed, and the subject can be tracked and photographed.

The network switch 2 relays data communication between the explosion-proof IP camera 1 and the management server 30 to enable remote monitoring and control.

The network switch 2 may be connected to various explosion-proof IP cameras 1 or other IP equipment in the field.

The management server 3 provides an image captured by the explosion-proof IP camera 1 to an administrator in real time, stores and manages the captured image, and transmits a command signal for controlling the explosion-proof IP camera 1.

The administrator connects to the management server 3 using a terminal (e.g., a smartphone) 6 or a PC equipped with an application to monitor the video captured by the explosion-proof IP camera 1 in real time, and the explosion-proof IP camera ( Command signals to control 1) can be input. That is, the administrator can remotely monitor and control the explosion-proof IP camera 1.

The PoE injector (4) is provided with a power terminal (4a) that receives external commercial power by connecting a power line to the rear, and an input connected to the network switch (2) by a communication line to support data communication on the front side. A port 4b and an output port 4c connected to the PoE splitter 5 via an Ethernet cable are provided.

The PoE injector 4 may preferably have a rated capacity of 90W or more.

The PoE splitter 5 is provided with an input port 5a connected to the PoE injector 4 with an Ethernet cable on the rear side, and connected to the explosion-proof IP camera 1 by a communication line to support data communication on the front side. An output port 5b to be used and a power port 5c connected to a power line to supply power are provided.

The PoE splitter 5 has a rated capacity of 75W or more, and a maximum rated voltage of 24V. The PoE splitter 5 can adjust the rated voltage output from the power port 5c. The output voltage is adjustable to 5V, 12V, 18V, and 24V.

The PoE splitter 5 is capable of outputting a rated capacity of 75W or more and a maximum rated voltage of 24V, thereby stably supplying power to various electrical equipment provided in the explosion-proof IP camera 1.

As shown in Figures 2 and 3, the explosion-proof IP camera 1 according to the present invention includes a camera unit 10, a first driving body 20, a second driving body 30, and a washing unit 40. Done.

The camera unit 10 includes a lens module 11, an LED 12, a housing 13, a tempered glass 14, and a sun shade plate 15.

The lens module 11 includes a lens 111 into which an optical signal of a subject located in the photographing direction is incident, an image sensor 113 that converts an optical signal input from the lens 111 into an electric signal, and the image sensor ( An image processing unit (not shown) for image processing the electrical signal to 113, and a heating member 115 for preventing fogging from occurring in the lens 111 or the tempered glass 14 due to environmental factors. The lens 111 is made of a convex lens or a concave lens, or a combination thereof, and the image sensor 113 may use a CCD device or a CMOS device.

The LED 12 illuminates the photographing direction of the lens module 11 so that the lens module 11 can photograph a distant subject. The LED 12 may be an IR LED that illuminates infrared light or a general LED that illuminates white light. Referring to the drawing, since six LEDs 12 are provided around the lens module 11, it is possible to photograph a subject at a distance of about 200m.

The housing 13 is composed of a cylindrical casing 131 and a cover 133 coupled to the front of the casing 131.

The lens module 11 is mounted on the housing 13, and the LED 12 is mounted on the cover 133. The housing 13 is equipped with an encoder for encrypting and compressing an image captured by the lens module 11, and a communication module for transmitting the compressed image to a control center by wire or wirelessly.

A see-through hole 134 is formed in the cover 133 so that the lens module 11 can photograph the front side, and the LEDs 12 are arranged around the see-through hole 134.

The tempered glass 14 is coupled to the front surface of the cover 133 to cover and protect the lens module 11 and the LED 12, and to photograph and illuminate the front side.

The tempered glass 14 is fastened and coupled to the cover 133 with a bolt 141, and a sealing ring R is pressurized between the tempered glass 14 and the cover 133 to tightly seal the gap therebetween. Do not allow water such as washing water and rainwater to penetrate.

A seating groove (!35) in which the sealing ring R is seated is formed in the cover 133, and the sealing ring R has a quad-ring structure in order to increase airtightness, and the elastic deformable member E It is equipped. This will be described later.

The sunshade plate 15 is coupled to the upper portion of the casing 131, and the front protrudes in front of the cover 133 to block the incident of light from the lens module 11.

The first driving body 20 rotates the camera unit 10 vertically and vertically, and the second driving body 30 rotates the first driving body 20 horizontally to the left and right, so that the camera unit It is possible to photograph the front of the lens module 11 of (10).

The first driving body 20 and the second driving body 30 are each of a first body 21 and a second body 31, a first body 21 and a second body 31, respectively. Including a motor and a second motor, a first rotation shaft 23 connecting the first motor and the camera unit 10, and a second rotation shaft 33 connecting the second motor and the first driving body 20 Done.

In the present invention, the housing 13 of the camera unit 10, the first body 21 of the first driving body 20 and the second driving body 30, and the first body 21 and The second body 31 is made of an integrally molded product that does not undergo a separate welding process, and each of them is assembled by using bolts or the like, and in particular, the explosion-proof performance is further improved by constituting them with austenitic stainless steel material.

Here, austenitic stainless steel is a kind of stainless steel used in superheaters with a steam temperature of 550℃ or higher, and refers to an alloy steel with a small amount of molybdenum, etc. added as needed, with 8-16% nickel, centered on 12-20% chromium. , Good workability, low thermal conductivity, and great hardenability by cold working.

The washing unit 40 sprays washing water onto the tempered glass 14 and then cleans the tempered glass 14 to maintain a clean state without foreign substances.

The washing unit 40 is connected to the injection nozzle 41 provided to be spaced apart from the second body 31 of the second driving body 30 by a predetermined distance, and a tube 42 to the injection nozzle 41 And a pump 43 that pumps and supplies the washing water, and a wiper 45 that rotates on the surface of the tempered glass 14 to remove washing water and foreign substances from the tempered glass 14.

In the case of washing the tempered glass 14, the first driving body 20 and the second driving body 30 operate to place the tempered glass 14 on the spray nozzle 41, and the pump 43 ) Is operated to spray the washing water on the surface of the tempered glass 14 through the spray nozzle 41, and a motor built in the casing 131 of the camera unit 10 rotates the shaft 44 forward and backward, and the wiper ( 45) rotates forward and backward on the surface of the tempered glass 14 to clean.

Referring to FIG. 4, the wiper 45 has the following configuration and structure to cleanly clean the surface of the tempered glass 14 even when used for a long period of time.

The wiper 45 has a'C' shape in cross section, a rotating bar 451 that is connected to the shaft 44 and rotates forward and backward on the surface of the tempered glass 14, and has a'C' shape in cross section. A first holder bar 452 accommodated in the rotation bar 451 and a first holder bar 452 having a cross-section in a'U' shape and arranged in parallel with the first holder bar 452 next to the rotation bar 451 A shaft pin 454 connecting the second holder bar 453 and the rotation bar 451, the first holder bar 452 and the second holder bar 453, and the first holder bar 452 and the second The first holder bar 452 is elastically supported between the cleaning brushes 455 and 456 that are pressed and fixed in the holder bar 453 and between the rotating bar 451 and the first holder bar 452. It includes an elastic support member 457 that allows the cleaning brushes 455 and 456 to move forward and backward by drawing in and out of the rotating bar 451.

A coupling hole 451h through which the shaft pin 454 is coupled is formed in a long hole structure on the side of the rotating bar 451 so that the first holder bar 452 can be withdrawn into and out of the rotating bar 451. In addition, the first holder bar 452 is rotatably coupled to the shaft pin 454 so that the first holder bar 452 can be inclined with the shaft pin 454 as an axis. The second holder bar 453 is withdrawn and inclined together with the first holder bar 452.

As for the elastic support member 457, as shown in FIG. 4, a plate spring having a side shape of'S' may be used.

The washing brushes 455 and 456 may use a rubber pad 455 or bundle hair 456.

In the following, referring to FIG. 5, a sealing ring (R) that seals the gap between the cover 133 of the housing 13 and the tempered glass 14, and the quadring (R) and the elastic deformable member (E) are It will be described in more detail.

The quad ring R includes lip portions R1 formed by protruding corners of a rectangular cross section in an arc shape, a fitting hole R2 formed in the center of the lip portions R1 in a longitudinal direction, and the fitting hole R2 It comprises an insertion groove (R3) formed by opening to one side of the.

The elastic deformable member (E) crosses a circular elastic ring portion (E1) in close contact with the inner circumferential surface of the fitting hole (R2) and an'X' shape at both ends of the elastic ring portion (E1) to cross the insertion groove (R3). ), and a pressing part E4 connected to protrude from the lip part R1 at the outer end of the connection part E2 and placed on the bottom of the seating groove 135.

When the protruding portion of the quadring (R) seated in the seating groove (135) of the cover 133 is pressed against the tempered glass (14), the bottom of the seating groove (135) presses the pressing portion (E4). While pressing, the elastic ring part E1 is opened, and the lip part R1 protruding out of the seating groove 135 is expanded, so that the surface of the tempered glass 14 is more strongly pressed and pressed. When the pressing part E4 is pressed, the connecting part E2 intersecting in an'X' shape opens the elastic ring part E1.

Here, the quadring (R) is increased to the left and right when the upper portion is pressed and pressed based on FIG. 5, the quad ring (R) seated in the seating groove (135) is blocked by the wall surface of the seating groove (135) Rather, the quadring (R) is not pressed to the side, but rather acts as a force that is pressed to the side of the wall of the mounting groove (135), the gap between the insertion groove (R3) is narrowed.

When the spacing between the insertion groove R3 is narrowed, the spacing of the two extension portions E3 of the elastic deformable member E is also narrowed, and the diameter of the elastic ring portion E1 is increased. When the diameter of the elastic ring part E1 is expanded, the lip part R1 outside the seating groove 135 is also expanded by that amount.

In the quad ring R, the outer surface of the concave portion between the one side lip portion R1 is cut into the insertion groove R3, so that the lip portions R1 may be opened around the fitting hole R2.

A plurality of insertion grooves R3 are arranged at predetermined intervals along the fitting hole R2.

The elastic deformable member (E) is mounted by fitting the circular ring-shaped elastic ring portion (E1) corresponding to the quad ring (R) into the fitting hole (R2) in a pipe shape, and at this time, the elastic ring portion (E1) along the The connecting portion E2 and the pressing portion E4 are connected to be arranged at a predetermined interval.

In addition, the connecting part E2 and the pressing part E4 are connected by an extension part E3 formed longer than the distance between the inner circumferential surface of the fitting hole R2 and the outer circumferential surface of the lip part R1, so that the elastic deformable member E When mounted in the fitting hole R2 of the quad ring R, the pressing portion E4 exposed to the insertion groove R3 protrudes more than the outer surface of the lip portion R1. Here, the pressing part E4 protrudes more than the outer surface of the lip part R1, so when the upper lip part R1 is pressed with reference to FIG. 5, the quadring R may temporarily descend, but As a result, the lower lip portion R1 is concave and the upper lip portion R1 is expanded by the elastic ring portion E1, thereby increasing the range in which the upper lip portion R1 is lifted and lowered.

In the above description of the present invention, an explosion-proof camera having a specific shape and structure has been described with reference to the accompanying drawings, but the present invention can be variously modified and changed by those skilled in the art, and such modifications and changes are the scope of the present invention. Should be interpreted as belonging to.

1: explosion-proof IP camera 2: network switch
3: Management server 4: PoE injector
5: PoE splitter 6: Manager terminal
10: camera unit 11: lens module
12: LED 13: housing
14: tempered glass 15: sun visor
20: first driving body 30: second driving body
40: washing unit 41: spray nozzle
42: tube 43: pump
44: shaft 45: wiper
451: Hojeon bar 452: 1st holder bar
453: second holder bar 454: shaft pin
455: rubber pad 456: bundle hair
457: elastic support member
R: sealing ring (quad ring) E: elastic deformable member

Claims (3)

Explosion-proof IP camera;
A network switch supporting data communication with the explosion-proof IP camera to enable remote monitoring and control;
A PoE injector connected to the network switch to support data communication and receiving power from an external device;
In the explosion-proof IP camera system comprising a; PoE splitter supporting data communication by connecting the PoE injector and the explosion-proof IP camera, and supplying power to the explosion-proof IP camera,

The rated capacity of the power supplied by the PoE splitter is 75W or more, and the maximum rated voltage is 24V,


It is seated in the seating groove formed on the front surface of the housing cover and is pressed against the tempered glass to seal the gap between the cover of the housing and the tempered glass,
The sealing ring includes a lip portion formed by protruding an arc-shaped corner portion of a square cross section, a fitting hole formed in the longitudinal direction at the center of the lip portions, and an insertion groove formed by opening to one side of the fitting hole, and seated in the mounting groove Using a quadring made of elastic material,
A circular elastic ring part in close contact with the inner circumferential surface of the fitting hole, a connection part connected to be inserted into the insertion groove by crossing an'X' shape at both ends of the elastic ring part, and a connection protruding from the outer end of the connection part than the lip part And further comprising an elastic deformable member comprising a pressing portion placed on the floor in the seating groove and an extension portion connecting the connection portion and the pressing portion,

When the protruding portion of the quad ring seated in the seating groove of the cover is pressed against the tempered glass,
The seating portion of the quad-ring seated in the seating groove acts as a force to be blocked by the wall of the seating groove, so that the spacing of the insertion groove is narrowed, and the bottom of the seating groove presses the pressing portion,
When the gap between the insertion groove of the quad ring is narrowed, the gap between the two extension parts of the elastic deformable member is also narrowed,
Explosion-proof IP camera system having a high-capacity PoE splitter, characterized in that the connection portion intersected in an'X' shape opens the elastic ring portion, and the lip portion protruding out of the seating groove is expanded and pressed against the surface of the tempered glass. The method of claim 1,
The explosion-proof IP camera
A lens module for photographing the front side,
An LED illuminating the photographing direction of the lens module,
A housing in which the lens module and LED are mounted,
A tempered glass coupled to the front of the housing to cover the lens module and the LED,
A spray nozzle for spraying washing water on the tempered glass,
Explosion-proof IP camera system with a high-capacity PoE splitter, comprising a wiper for cleaning the tempered glass. delete

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