KR101600425B1 - speed dome IP camera - Google Patents

Abstract

The present invention relates to an IP-speed dome camera, and more particularly to an IP-conversion unit 20 for transmitting video and audio signals output from a zoom camera 10 and a zoom camera 10 to a central monitoring center 80 via the Internet, And the slip ring 40 connects the LAN signal output from the IP conversion unit 20 provided inside the rotation bracket 30 to the Internet 200 through the slip ring connection block 25, Speed high-capacity digital data output from the zoom camera is converted into a LAN signal stronger to the external environment so as to pass through the slip ring, thereby preventing data loss in the slip ring. In the case of modifying the camera module, You can minimize the correction by modifying only the slip ring part without modifying the other parts that connect the camera with the zoom camera. In addition, the hybrid infrared ray irradiator is installed so as to surround the lens of the zoom camera, and infrared rays are radiated at a nighttime where there is no light source so that the projection distance is 500 m or more, thereby capturing an image by capturing an object.

Description

 IP speed dome camera {speed dome IP camera}

In particular, the present invention relates to an IP-speed dome camera, and more particularly, to an IP-speed dome camera which minimizes the number of connection lines passing through a slip ring by connecting a video signal photographed by an IP camera to a LAN via a slip ring Speed dome camera capable of preventing data loss by connecting a LAN signal, which is relatively strong against an external impact, to the Internet through a slip ring.

IP (Internet Protocol) camera is a camera that transmits video through a network. It contains a web server, a network interface device and a CCD (Charge Coupled Device) module. It can transmit video in real time via network. Monitor and record video from the 24-hour scene via the camera's IP or web address anywhere.

CCTV and IP camera technologies, which are typical surveillance and security systems, are being developed rapidly and the space used is continuously expanding. This surveillance camera is becoming a basic specification in Korea and abroad, and surveillance cameras are increasingly being accepted, and there is a demand for a system that can be used more cleanly, without malfunctions and easy to use.

The current image field is being rapidly digitized. It is a matter of time before the video signal changes from analog to digital, and it is forming a new market instead of the analog CCTV camera system which occupied the existing market.

IP cameras are gradually replacing the conventional analog camera market, and IP (Internet Protocol) cameras receive image data signals output from the cameras at the IP server and transmit them through the Internet.

However, since the amount of data increases exponentially as the signal output from the camera changes to a digital data signal, it must be connected to the IP server installed outside through the rotating body rotating the camera 360 ° and the slip ring. A data loss occurred at the contact point of the slip ring.

FIG. 1 shows a connection diagram illustrating a connection state between an IP camera and an IP server according to a conventional technique.

The IP camera 1 is installed in a site to be monitored for security, security, store management, etc., and the digital image data output from the IP camera 1 is transferred to the LVDS processing unit 2a of the IP server 2.

 The LVDS processing unit 2a receives high-speed digital image data of, for example, 2.5 Gbps capacity from the IP camera 1 using a low voltage differential signaling (LVDS) technique.

The IP camera 1 photographs while rotating 360 ° in order to monitor a monitoring target place, and outputs a slip ring input / output (I / O) 360 ° rotating to rotate the IP camera 1 by 360 ° in order to output the IP camera 1 to the IP server 2 And passes through the portion 1a.

At this time, when the 8-bit digital image data output from the IP camera 1 passes through the slip ring input / output unit 1a and rotates the IP camera 1 by 360 °, loss of digital data occurs at the contact point of the slip ring.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an IP server in a rotating body of a zoom camera to convert high speed and high capacity digital data output from a zoom camera into a strong LAN signal in an external environment, Speed dome camera capable of preventing data loss in the slip ring by allowing the slip ring to pass therethrough.

Another object of the present invention is to provide an IP server in a rotating body of a zoom camera, in which, when a camera module is modified, only the slip ring part is modified without modifying other parts connecting the IP server and the zoom camera, Speed dome camera.

It is another object of the present invention to provide a hybrid infrared light emitter in which a hybrid light emitter is used by appropriately mixing a laser diode and an LED and a infrared light emitter and a laser infrared light emitter are mixed to surround a lens of a camera, And an object of the present invention is to provide an IP-speed dome camera capable of acquiring images by irradiating infrared rays with a projection distance of 500 m or more so as to capture an object.

According to an aspect of the present invention, there is provided an IP-speed dome camera comprising: a zoom camera for photographing a monitored area; A hybrid infrared light emitter installed around the lens of the zoom camera and composed of a plurality of infrared LED light emitters and a plurality of laser diode emitters; An IP converter for transmitting video and audio signals output from the zoom camera to a central monitoring center via the Internet; A rotation bracket for rotating the zoom camera and the IP conversion unit 360 degrees to photograph the monitored area; A tilt drive motor for vertically rotating the zoom camera; A slip ring connecting the LAN signal output from the IP conversion unit installed in the rotation unit to the Internet; The pan driving motor and the tilt driving motor are controlled to rotate the zoom camera up and down and the rotation bracket is rotated 360 ° horizontally so that the zoom camera photographs the monitored area and provides it to the central monitoring center via the Internet A microcomputer for controlling the microcomputer; And a fan drive motor for horizontally rotating the rotation bracket.

According to an embodiment of the present invention, the IP conversion unit may include an LVDS processing unit for receiving high-speed digital video and audio data from the zoom camera; A video and audio IP encoder for compressing the high-speed digital video and audio data according to an image standard format and performing IP encoding and output; An alarm sensor I / O and a LAN output unit for converting a video signal output from the video / audio IP encoder into a LAN signal so as to be transmitted through the Internet; And a slip ring connection block for outputting the LAN signal output from the alarm sensor I / O and the LAN output unit to the Internet through a slip ring.

According to an embodiment of the present invention, the rotation bracket is provided with a zoom camera and an IP conversion unit, and the zoom camera is rotated at an angle of 90 ° or more upward and downward by a tilt drive motor, And the rotating bracket is rotated 360 占 horizontally.

According to an embodiment of the present invention, the hybrid infrared ray projector includes a plurality of infrared LED floodlights and a plurality of laser diode floodlights, and selectively operates the infrared LED floodlights and the laser diode floodlights according to the zoom distance, And is configured to enclose the lens of the zoom camera in the form of "? &Quot;, so that the zoom camera is interlocked with the infrared camera to illuminate infrared rays at night without a light source to provide illumination to the zoom camera.

According to an embodiment of the present invention, the slip ring connects a LAN signal connecting line output from an alarm sensor I / O and a LAN (Local Area Network) output unit of the IP conversion unit to the Internet without kinking The video and audio signals of the zoom camera rotating by 360 degrees are transmitted to the Internet without being twisted.

According to an embodiment of the present invention, when a wiper is installed on a protection window for protecting the lens of the zoom camera and a wiper operation signal is transmitted from the central monitoring center to the microcomputer when the image is not clear due to rain or a lot of dust, So that the dust of the window can be removed.

According to the present invention, the IP server is installed in the rotating body of the zoom camera to convert high-speed and high-capacity digital data output from the zoom camera into a LAN signal stronger to the external environment and pass through the slip ring to prevent data loss in the slip ring In the case of modifying the camera module, the modification part can be minimized by modifying only the slip ring part without modifying the other parts connecting the IP server and the zoom camera.

In addition, the hybrid infrared ray irradiator is installed so as to surround the lens of the zoom camera, and infrared rays are radiated at a nighttime where there is no light source so that the projection distance is 500 m or more, thereby capturing an image by capturing an object.

FIG. 1 is a connection diagram showing a connection state between an IP camera and an IP server according to a conventional technique,
FIG. 2A is a block diagram showing a configuration of an IP-speed dome camera according to an embodiment of the present invention,
FIG. 2B is a perspective view of a hybrid infrared light projector installed in an IP-speed dome camera according to the present invention,
3 is a perspective view of a zoom camera, an IP conversion unit, and a rotation bracket installed on the rotation bracket according to the present invention,
4 is an exploded perspective view showing a state in which the rotation bracket according to the present invention is separated from the outer protective cover,
5 is a perspective view showing a state in which an IP-speed dome camera according to the present invention is installed on a camera pole.

While the present invention has been described with reference to particular embodiments, it is capable of being embodied in many different forms and is not limited to the embodiments set forth herein. Hereinafter, the present invention will be described with reference to the drawings.

2A is a perspective view illustrating a configuration of an IP-speed dome camera according to an embodiment of the present invention, and FIG. 2B is a perspective view of a hybrid infrared light projector installed in an IP-speed dome camera according to the present invention.

An IP-speed dome camera (100) according to the present invention includes a zoom camera (10) for photographing an area to be monitored; A hybrid infrared light emitter 15 installed around the lens of the zoom camera 10 and composed of a plurality of infrared LED light emitters 15a and a plurality of laser diode emitter 15b; An IP (Internet Protocol) converter 20 for transmitting video and audio signals output from the zoom camera 10 to a central monitoring center 80 via the Internet; A rotation bracket (30) for rotating the zoom camera (10) and the IP conversion unit (20) 360 ° to photograph the monitored area; A tilt driving motor 50 for rotating the zoom camera 10 up and down; A slip ring 40 for connecting a local area network (LAN) signal output from the IP conversion unit 20 installed in the rotation bracket 30 to the Internet 200 through a slip ring connection block 25; The pan driving motor 70 and the tilt driving motor 50 are controlled to rotate the zoom camera 10 up and down so that the zoom camera 10 photographs the monitored area, A microcomputer 60 for controlling the central monitoring center 210 so as to provide it to the central monitoring center 210; A pan drive motor 70 for horizontally rotating the rotation bracket 30 under the control of the microcomputer 60; A temperature sensor and an I / O terminal 90 for sensing an internal temperature of the IP-speed dome camera 100; And a power supply unit 110 for supplying power.

The zoom camera 10 photographs the monitored area at an angle of 90 degrees or more and 360 degrees horizontally and outputs the image data to the LVDS processing unit 21 of the IP conversion unit 20. Here, the IP conversion unit 20 is provided inside the rotation bracket 30 provided in the tilt mechanism of the IP-SPEED dome camera 100 according to the prior art.

The hybrid infrared ray projector 15 is installed to enclose the lens of the zoom camera 10 in the form of "?" So as to interfere with the zoom camera 10 to irradiate infrared rays at night without a light source, (10) to obtain images.

The hybrid infrared ray projector 15 includes a plurality of infrared LED flooders 15a and a plurality of laser diode floodlights 15b and a plurality of infrared LED floodlights 15a emits infrared rays but has a projection distance of up to 150m A laser diode light emitter 15b for irradiating an infrared laser with a laser diode in the same number as the number of the infrared LED light emitters 15a is provided to extend the projection distance to 500 m or more.

The LVDS processing unit 21 of the IP conversion unit 20 receives the high speed digital image and voice data from the zoom camera 10 as a low voltage differential signaling (LVDS) And is applied to an interface between transmission devices of a signal.

The video and audio IP encoder 22 compresses the high-speed digital video and audio data input from the zoom camera 10 according to an image standard format using an image compression standard technology, IP-encodes it, and outputs it to an alarm sensor I / Local Arear Network "

The alarm sensor I / O and the LAN output unit 23 convert the video signal output from the video / audio IP encoder 22 into a LAN signal and output it to the central monitoring center 210 through the Internet 200 .

The LAN signal outputted from the alarm sensor I / O and the LAN output section 23 is outputted through, for example, four cable lines and is transmitted to the Internet 200 through the slip ring connecting block 25 and the slip ring 40 And transmitted.

The rotation bracket 30 is provided with a zoom camera 10 and an IP conversion unit 20 and the zoom camera 10 is rotated at an angle of 90 ° or more by receiving a rotational force from the tilt drive motor 50, The rotation bracket 30 is rotated by the fan drive motor 70 to rotate 360 degrees.

Since the IP conversion unit 20 installed inside the rotation bracket 30 also rotates together with the rotation bracket 30, the control signal from the microcomputer 60, which controls the zoom camera 10 and the IP conversion unit 20, So that the signal is transmitted through the slip ring 40 which is not twisted even when rotated by 360 degrees.

Accordingly, the IP-SPEED dome camera 100 according to the present invention rotates the zoom camera 10 by 90 ° or more and rotates the tilt driving motor 50 installed inside the rotation bracket 30, And drives the fan drive motor 70 for rotating the bracket 30 by 360 degrees.

The zoom camera 10 installed in the rotation bracket 30 captures all or a specific area of the monitored area through the slip ring so as to photograph the entire or specific area of the monitored area through the IP conversion unit 20 and the slip ring 30, To be monitored.

The tilting drive motor 50 is controlled by the microcomputer 60 to rotate the zoom camera 10 up and down and the fan drive motor 70 rotates the rotation bracket 30 to rotate the zooming camera 10 in a desired direction Rotate at an angle.

The slip ring 40 transmits the LAN signal connecting line output from the alarm sensor I / O and the LAN (Local Area Network) output unit 23 to the Internet 200 without twisting in spite of the rotation of the rotating bracket 30, The video and audio signals of the rotating pan / tilt camera 10 are transmitted to the Internet 200 without being twisted.

The microcomputer 60 receives an instruction from the central monitoring center 210 through the Internet 200 and controls the zoom camera 10, the IP conversion unit 20, the tilt driving motor 50 and the fan driving motor 70 And controls to transmit the image of the monitored area to the central monitoring center 210 by photographing the upper and lower 90 degrees and the 360 degrees horizontally.

The fan drive motor 70 rotates the rotary bracket 30 horizontally by 360 ° so that the zoom camera 10 can photograph the monitor area while rotating the 360 ° area.

The power supply unit 110 converts external power sources such as AC 110 V and AC 220 V to DC constant voltage and supplies the DC constant voltage to the IP-speed dome camera 100.

FIG. 3 is a perspective view of a zoom camera, an IP converter, and a rotation bracket provided on the rotation bracket according to the present invention.

The zoom camera 10 is installed at the upper end of the rotation bracket 30 and rotates together with the rotation of the rotation bracket 30 to photograph the monitoring target area by rotating the rotation direction by 90 degrees or more and 360 degrees horizontally. The high-capacity high-speed digital video signal photographed and output by the zoom camera 10 is input to the IP conversion unit 20 provided in the middle of the rotation bracket 30 without passing through the slip ring.

The hybrid infrared ray projector 15 is installed so as to surround the lens of the zoom camera 10 so that the zoom camera 10 irradiates the infrared ray so that the projection distance is 500 m or more at the night without a light source, It is possible to acquire images by photographing an object at a distance of 200 m or more.

IP converter 20 encodes the high-capacity high-speed digital video signal output from the zoom camera 10 in accordance with the video standard and the Internet protocol in the video and audio IP encoder 22, and outputs the alarm sensor I / O and the LAN output unit 23 to a LAN signal and outputs the signal to the Internet 200 through the slip ring connection block 25 and the slip ring 40.

Accordingly, in the conventional art, LVDS data, which is a video signal of a camera, flows through a slip ring, thereby transmitting and receiving a high-capacity high-speed digital video signal between a video camera installed in a tilting mechanism and a PAN mechanism, For example, 40 wires are connected between the IP server and the zoom camera through the slip ring, so that when the slip ring rotates, the contact is incomplete contact and data loss occurs.

However, in the present invention, the zoom camera 10 and the IP conversion unit 20 are installed inside the rotation bracket 30 so that the high-capacity high-speed digital video signal output from the zoom camera 10 can be transmitted to the IP The IP conversion unit 20 converts the signal into a LAN signal, passes through the slip ring 40 with, for example, a 4-stranded LAN cable (LAN Cable) Can be minimized.

The rotation bracket 30 is rotated by the fan drive motor 70 and the fan drive motor 70 is controlled by the microcomputer 60. [

4 is an exploded perspective view showing a state in which the rotation bracket according to the present invention is separated from the outer protective cover.

The slip ring 40 is installed at the center of the protection cap 90 and the upper cable 41 is connected to the zoom camera 10 and the IP conversion unit 20 provided inside the rotation bracket 30, The zoom camera 10 and the IP conversion unit 20 pass the slip ring 40 through the four wires of the lower electric wires 42 that have passed through the ring 40 to the LAN cable And connects to the Internet by the lower wire 42 of the strand.

5 is a perspective view showing a state in which an IP-speed dome camera according to the present invention is installed on a camera pole.

The IP-SPEED dome camera 100 according to the present invention is installed, for example, on the camera pole 150, and the hybrid infrared light projector 15 is installed so as to surround the lens of the zoom camera 10 in the form of "∩".

A laser type laser diode light emitter 15b having a projection distance of 500 m or more for irradiating an infrared laser is installed together with an infrared LED light projector 15a having a projection distance of up to 150 m to extend the projection distance to 500 m or more.

In this case, when the light emitting distance of 500 m or longer is enabled, the consumed electric power is increased and the internal temperature of the IP-SPEED dome camera 100 is increased. As a result, the operation of the camera is unstable and the service life is shortened.

In order to prevent such an increase in the internal temperature, the zoom camera 10 senses an image only at a zoom magnification that is currently being operated as shown in Table 1. Accordingly, the zoom magnification adjustment signal transmitted from the central monitoring center 210 is detected by the microcomputer 60 The light emitting distance according to the zoom magnification adjusting signal is stored in the built-in memory of the microcomputer 60 in advance as shown in " Table 1 ", and the microcomputer 60 calculates current data corresponding to the zoom magnification, The infrared ray emitter 15 is controlled so as to match the magnification, so that the power consumption can be stabilized to be less than 1/2 even in the middle-distance operation, thereby preventing thermal runaway.

Room distance LED Floodlight Laser emitter electric current Brightness (hexadecimal) electric current Brightness (hexadecimal) 40m 0.1A 7A 60m 0.2A A4 80m 0.3A B3 100m 0.4A D1 140m 0.5A E0 200m 0.6A FE 250m 0.1A 7A 300m 0.2A A4 350m 0.3A B3 400m 0.4A D1 450m 0.5A E0 500m 0.6A FE

For example, when the zoom camera 10 monitors the wide field of view, when the zoom magnification is doubled, the zoom camera 10 operates in the 40-m radiation mode of Table 1. Thus, the laser diode The operation of the light emitter 15b is stopped to prevent heat from being generated at the laser diode emitter 15b to prevent thermal diffusion.

Conversely, in order to monitor the longest distance, the central monitoring center 210 operates the zoom magnification at the largest magnification, and when the emission distance is 500 m, the microcomputer 60 detects the zoom magnification adjustment signal and is used for short-distance light projection from 40 m to 200 m The infrared LED floodlight 15a having a projection distance of 200 m or less is turned off by applying 0.6 A to the laser diode floodlight 15b used for medium distance light projection from 200 m to 500 m, Minimizes heat generation and prevents operation anxiety due to heat generation.

In this way, the infrared LED floodlight 15a and the laser diode floodlight 15b are selectively operated by the microcomputer 60 according to the zoom distance, and heat dissipation is innovatively reduced, thereby making it possible to observe the image at nighttime over 500 m.

In addition, when the wiper 12 is installed on the protection window 11 for protecting the lens of the surveillance zoom camera 10 and the image is not clear due to rain or a lot of dust, the central monitoring center 210 The dust of the protection window 11 can be removed by transmitting a wiper operation signal.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. It is, of course, within the scope of the appended claims to cover the description of the invention which forms such changes.

10: Zoom camera 11: Protection window
12: Wiper 15: Hybrid Infrared Emitter
15a, 15b: Infrared ray and laser beam projector 20: IP conversion unit
21: LVDS processing unit 22: video and audio IP encoder
23: Alarm sensor I / O and LAN output unit 24: Image storage unit
25: slip ring connection block 30: rotation bracket
40: slip ring 50: tilt drive motor
60: Micom 70: Pan drive motor
100: IP-SPEED DOME CAMERA 110: POWER SUPPLY
150: Camera pole 200: Internet
210: Central Monitoring Center

Claims (6)

A zoom camera for photographing a surveillance target area;
A hybrid infrared light emitter installed around the lens of the zoom camera and composed of a plurality of infrared light emitters and a plurality of laser emitters;
An IP converter for transmitting video and audio signals output from the zoom camera to a central monitoring center via the Internet;
A rotation bracket for rotating the zoom camera and the IP conversion unit 360 degrees to photograph the monitored area;
A tilt driving motor for vertically rotating the zoom camera;
A slip ring connecting the LAN signal output from the IP conversion unit installed in the rotation bracket to the Internet;
The pan driving motor and the tilt driving motor are controlled to rotate the zoom camera up and down and the rotation bracket is rotated 360 ° horizontally so that the zoom camera photographs the monitored area and provides it to the central monitoring center via the Internet A microcomputer for controlling the microcomputer; And
And a fan driving motor for horizontally rotating the rotating bracket,
Wherein the IP conversion unit comprises:
An LVDS processing unit for receiving high-speed digital video and audio data from the zoom camera;
A video and audio IP encoder for compressing the high-speed digital video and audio data according to an image standard format and performing IP encoding and output;
An alarm sensor I / O and a LAN output unit for converting a video signal output from the video / audio IP encoder into a LAN signal and outputting the same; And
A slip ring connection block for outputting a LAN signal output from the alarm sensor I / O and the LAN output unit to the Internet through a slip ring;
Wherein the IP-speed-dome camera comprises: delete The method according to claim 1,
Wherein the rotation bracket is provided with a zoom camera and an IP conversion unit, and the zoom camera rotates at an angle of 90 DEG or more by vertically by a tilt driving motor. The method according to claim 1,
The hybrid infrared ray emitter includes a plurality of infrared LED light emitters and a plurality of laser diode emitters. The hybrid infrared ray emitter selectively operates the infrared LED emitter and the laser diode emitter according to the zoom distance to reduce heat emission, Wherein the zoom camera is provided to surround the camera in a shape of "?" So as to illuminate infrared rays at night without a light source to interoperate with the zoom camera to provide illumination to the zoom camera. The method of claim 3,
The slip ring transmits a LAN signal connecting line output from the alarm sensor I / O and the LAN output unit of the IP conversion unit to the Internet without twisting in spite of the rotation of the rotation bracket, thereby rotating the pan / Wherein the video and audio signals are transmitted to the Internet without kinking. 6. The method of claim 5,
A wiper is installed on a protection window for protecting the lens of the zoom camera, and when the image is not clear due to rain or a lot of dust, a wiper operation signal is transmitted from the central monitoring center to the microcomputer to remove dust from the protection window Speed dome camera.

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