KR101868283B1 - Network camera - Google Patents

Abstract

The present invention provides a network camera which drives a sensor part and a camera module through a power supply part and a control part shared to the network camera so that concentration information of fine particles sensed by the sensor part and image information obtained from the camera module are combined and are transmitted to a client, thereby simplifying an internal configuration. According to an embodiment of the present invention, the network camera comprises the sensor part formed on one side of a housing, and formed to sense a first concentration of the fine particles; the control part and the power supply part driving the sensor part and the camera module embedded in the housing; and a communication part combining the first concentration information sensed by the sensor part and the image information obtained from the camera module, and transmitting the first concentration information and the image information to the client through a network.

Description

Network camera {NETWORK CAMERA}

According to one embodiment of the present invention, a sensor unit is formed on one side of a housing, and an opening and closing unit formed in a housing of a network camera and a cooling unit are operated according to density information of the fine particles sensed by the sensor unit, The present invention relates to a network camera that simplifies the internal structure by driving a sensor unit and a camera module through a power unit and a control unit so that the concentration information and the image information acquired by the camera module can be merged and transmitted to a client.

CCTV (Closed Circuit TeleVision) is a system that allows captured video from a surveillance camera to be transmitted to a client, including surveillance cameras and clients. CCTV can be applied in various fields such as industrial, household, traffic monitoring, and disaster prevention.

 As the applicable field of CCTV is expanded, it is widely used at home. For example, it is widely used for monitoring infants, elderly people and pets in homes where infants, elderly people, or pets live. In a conventional home CCTV, a remote parent or guardian can monitor the infant, the elderly, or the pet through a video using a mobile phone and check whether there is an abnormal situation.

On the other hand, there is a problem of fine dust, which is an environmental problem that is very dangerous and must be solved so that it is nicknamed "murderer of silence".

These fine dusts are particles as small as one-half of the diameter of the hair (50 to 70 μm), which flows lightly along with the airflow so as not to hit the wall, and adversely affects the nose, mouth, and the like. There is a demand to know information on the substance to be detected, for example, the fine dust concentration.

Particularly, the image acquired from the CCTV due to the fine dust is blurred, which makes it difficult to identify the objects in the image, and there is a problem that the fine dust accumulates on the CCTV to overheat.

Accordingly, in the present invention, a sensor capable of measuring fine dust is installed in a location where the CCTV is pre-installed in various places including a remote place, and the devices installed side by side due to sensor installation are minimized, Which can cause overheating and blurred images that can be generated by the camera.

One object of the present invention is to provide a power supply unit shared by a network camera so that a sensor unit is formed on one side of a housing and the concentration information of the fine particles sensed by the sensor unit and the image information acquired by the camera module are merged and transmitted to a client And it is an object of the present invention to provide a network camera that can simplify the internal structure by driving the sensor unit and the camera module through the control unit.

Another object of the present invention is to operate the opening and closing part and the cooling part according to the concentration information of the fine particles sensed by the sensor part so that the influence caused by the fine particles such as the possibility that the fine particles penetrate into the inside, It is possible to prevent distortion and the like from occurring. When the density value exceeds a predetermined value, it is possible to correct a blurred image with fine particles or to control the operation of the camera module to secure a clearer image .

It is a further object of the present invention to provide a network camera which performs a function of a hub capable of collecting data of an external sensor installed apart from the network camera and simultaneously transmits first density information sensed by the sensor unit and second density information sensed by the external sensor It is an object of the present invention to diagnose the failure of the sensor unit itself through comparison.

It is still another object of the present invention to provide an image processing apparatus and a communication method in which the communication unit receives the first communication data to which the identifier is transmitted from the control unit and then merges the first communication data into the second communication data, Therefore, it is possible to reduce the time required for data conversion.

The problems to be solved by the present invention are not limited to the above-mentioned task (s), and another task (s) not mentioned is to be clearly understood to those skilled in the art to which the present invention belongs It can be understood.

According to another aspect of the present invention, there is provided a network camera comprising: a sensor unit formed at one side of a housing to detect a first concentration of fine particles; And a communication unit configured to transmit the first concentration information detected by the sensor unit and the image information acquired by the camera module to the client through the network, the control unit driving the camera module, the sensor unit, and the power source unit .

According to an embodiment of the present invention, there is provided an apparatus for controlling an electronic apparatus, comprising: an opening / closing unit slidably opened to expose a heat radiating plate formed on one surface of the housing when the sensed first concentration information exceeds a preset value; And a cooling unit configured to circulate outside air into the housing.

According to another embodiment of the present invention, there is provided an image processing apparatus including an interface unit connected to an external sensor disposed apart from the network camera to receive second density information of fine particles, When the difference is less than a predetermined value, generates an error signal for diagnosing whether or not any one of the sensor unit and the external sensor is faulty, and transmits the error signal to the client through the communication unit when the difference is less than a predetermined value, 1, the operation of the camera module is controlled.

According to an embodiment of the present invention, the image processing apparatus further includes an image processing unit for correcting the photographed image according to the detected value of the first density information to a predetermined correction value.

According to an example of the present invention, when converting any one of the first and second density information into communication data, the controller assigns each identifier identifying the first and second density information, And the communication unit merges the first communication data into the second communication data in which the image is converted according to whether the identifier is received or not, and transmits the merged first communication data to the client via the network.

In the network camera according to at least one embodiment of the present invention configured as described above, a sensor unit is formed on one side of the housing, and the density information of the fine particles sensed by the sensor unit and the image information acquired from the camera module are merged The sensor unit and the camera module are driven through the power unit and the control unit shared by the conventional network camera so as to be transmitted to the client, thereby simplifying the internal structure.

Also, the opening and closing parts and the cooling part are operated according to the concentration information of the fine particles detected by the sensor part, and the influence caused by the fine particles, for example, the possibility that the fine particles penetrate into the inside, When the density value exceeds a predetermined value, it is possible to correct an image which may be blurred by fine particles, or to control the operation of the camera module to secure a clearer image.

In addition, a hub function capable of collecting data of an external sensor installed apart from the network camera is performed, and the first concentration information detected from the sensor unit and the second concentration information detected from the external sensor are compared with each other, It is possible to diagnose the disease itself.

Further, since the communication unit receives the first communication data to which the identifier received from the control unit is received, the first communication data is merged with the second communication data in which the image is converted, and the first communication data is transmitted to the client via the network. There is an effect that the time required for processing can be reduced.

The effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the following description will be.

1 is a conceptual diagram of a network camera system according to an embodiment of the present invention.
2 is a configuration diagram of a network camera according to an embodiment of the present invention.
FIG. 3A is an example showing an appearance including the network camera housing of FIG. 2, and FIG. 3B is an example for illustrating an opening and closing part and a cooling part.
4 is an operation process of a network camera according to an embodiment.
5 is an operation process of a network camera according to another embodiment.

Hereinafter, a network camera according to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the present specification, the same or similar reference numerals are given to different embodiments in the same or similar configurations. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

It is to be understood that the drawings herein illustrate conceptual aspects of exemplary circuits embodying the principles of the invention. That is, it should be understood that the functions shown in the figures may be substantially represented on a computer-readable medium and performed by various processes performed by the computer or processor, whether or not the computer or processor is explicitly shown.

And, each function can be provided not only with dedicated hardware, but also with the use of hardware capable of executing software in connection with appropriate software. When provided by a processor, the functions may be provided by a single dedicated processor, a single shared processor, or a plurality of individual processors, some of which may be shared.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a conceptual diagram of a network camera system according to an embodiment of the present invention, and FIG. 2 is a configuration diagram of a network camera according to an embodiment of the present invention.

Referring to FIG. 1, a network camera system 1000 may include a network camera 100, an external sensor 200, and a client 300.

2, the network camera 100 includes a camera module 110, a sensor unit 120, an interface unit 130, a power source unit 140, a control unit 150, an image processing unit 160, And a communication unit 170.

The camera module 110 is formed as a lens protruding from the inside of the housing 101 of the network camera 100 and captures an image of a specific spatial point in real time. The camera module 110 functions as a pan, tilt, and zoom And a PTZ (PAN, TILT, or PTZ) that performs pan / tilt / zoom control under the control of the controller 130 or the client to adjust the angle of view for rotating the camera up and down, , ZOOM) camera.

According to the embodiment, the camera module 110 may include an IP camera, an HD-SDI camera, an analog camera, a fire detection color camera, an infrared camera, an HD (1920x1080, HD1080p) camera at an SD (720x486, NTSC) A zoom speed camera, and a CCTV camera, and may be means for recognizing various types of images.

Next, the sensor unit 120 is formed on one side of the housing 101 of the network camera 100 and detects a first concentration (for example, a concentration having a unit of 占 퐂 / m3) of fine particles such as fine dust As shown in FIG.

More specifically, the sensor unit 120 senses fine particles having various sizes of chemical composition as well as floating dust having a particle size of usually 0.1 to 100 占 퐉, and outputs first concentration information of the fine particles can do.

The sensor unit 120 is a sensor to which any one of a filter paper method, a Beta-ray attenuation method (BAM), and a micro-balance method (TEOM) is applied. In particular, the concentration of fine dust can be automatically measured continuously and the weight can be measured directly.

According to the embodiment, the sensor unit 120 may further include a temperature sensor and a humidity sensor to output temperature information and humidity information.

Next, the interface unit 130 may be connected to an external sensor 220 installed apart from the network camera 100 to receive the second density information of the fine particles.

At this time, the interface unit 130 may be a hub device that receives second concentration information of fine particles from an external sensor 220 connected through various communication interface functions such as RS-232, RS-485, DIGILINK and CAN.

Next, the power supply unit 140 includes various components included in the network camera 100 such as a camera module 110, a sensor unit 120, an interface unit 130, a control unit 150, an image processing unit 160, (Not shown).

The control unit 150 according to the embodiment of the present invention receives the driving signal through the communication unit 170 that communicates with the client 300 through the network 10 and transmits the driving signal to the housing 100 of the network camera 100 through the power source unit 140. [ By supplying power to the camera module 110 and the sensor unit 120 built in the camera module 101

That is, the power supply unit 140 and the control unit 150 may be configured to drive the camera module 110 and the sensor unit 120 built in the housing 101.

The control unit 150 receives the first concentration information of the fine particles detected by the sensor unit 120 and is connected to the external sensor 220 installed on the network camera 100 through the interface unit 130 The second concentration information of the fine particles can be input.

At this time, when the difference between the first concentration information sensed by the sensor unit 120 and the second concentration information received from the interface unit 130 is equal to or greater than a predetermined value, the controller 150 controls the sensor unit 120, And transmits the error signal to the client 300 through the communication unit 170. The error signal can be transmitted to the client 300 through the communication unit 170. [

When the difference is less than a predetermined value, the control unit 150 drives the operation of the camera module 110, for example, a pan, tilt, or zoom according to the first density to rotate the camera module 110 up and down, Adjustment of the focal length of the lens mounted on the camera module 110, magnification adjustment, and the like.

According to an embodiment, the controller 150 defines either the first or the second concentration information according to a network packet, which is first communication data, for example, a Real-time Transport Protocol (RTP) implemented on the WebRTC framework The first and second density information may be transmitted to the communication unit 170. In this case,

Here, the WebRTC provides a framework for performing voice, moving picture, and control, and the WebRTC can be provided in the form of a hardware in the control unit 150 or can be implemented in software.

The control unit 150 converts any one of the first and second concentration information into first communication data and assigns each identifier for identifying the first and second concentration information to the first communication data, (170).

Next, the image processing unit 160 may correct the image photographed through the camera module 110 according to the first density value detected by the sensor unit 120 to a predetermined correction value.

More specifically, as the value of the first density detected by the sensor unit 120 rises, the image processing unit 160 determines whether the contrast, contrast, exposure, and sharpness of the image It is possible to perform correction for each step in accordance with the value of the concentration and output it to the communication unit 170.

Accordingly, the network camera 100 has an effect of ensuring that the image blurred due to the fine dust is captured more clearly through the image processing unit 160.

The communication unit 170 transmits the image output from the image processing unit 160 or the camera module 110 to the second communication data which is a network packet according to a Real-time Transport Protocol (RTP) implemented on the WebRTC framework Data or packet and transmit it to the client 300 via the network 10. [

According to the embodiment, the communication unit 170 may be a communication unit such as ISA100.11a, Wireless HART (Universal Asynchronous Receiver Transmitter), Profibus, Fieldbus, WiFi, WLAN, HSDPA, Long Term Evolution To network data used in a protocol, RS485 protocol, Ethernet protocol, USB (Universal Serial Bus) or SDIO (Secure Digital Input Output), UART (Universal Asynchronous Receiver / Transmitter) or I2C To the client (300) via the network (10).

The communication unit 170 may be configured to merge the first concentration information sensed by the sensor unit 120 and the image information acquired by the camera module 110 and transmit the merged image to the client 300 through the network 10 .

More specifically, the communication unit 170 converts the second communication data converted by the camera module 110 into an RTP packet defined according to the Real-time Transport Protocol (RTP) implemented on the WebRTC framework The first communication data converted into the RTP packet defined according to the first communication data converted through the controller 150, for example, the Real-time Transport Protocol (RTP) implemented on the WebRTC framework, is merged with the second communication data The first and second communication data are merged based on the identifiers included in the first communication data, for example, a header packet so that the first and second communication data can be identified by the client 300 and transmitted to the client 300 through the network 10 .

That is, the communication unit 170 merges the first communication data with the second communication data converted according to whether the identifier given by the control unit 150 is received, and transmits the merged data to the client (300).

This RTP format is for DTP-AVT-MPEG4-MULTISL-02 to transmit the video in a multiplexing layer (SL) packet and transmit it in real time transport protocol (RTP). TXT.

Here, the network 10 includes all the communication networks for connection between the network camera 100 and the client 300, that is, the digital device and the external device, data communication, etc., A wired / wireless communication network to be supported, and can support one or more communication protocols for it.

For example, the wired / wireless network 10 may be a universal serial bus (USB), a Composite Video Banking Sync (CVBS), a Component, an S-Video (analog), a DVI (Digital Visual Interface) , A communication standard or protocol for a wire connection such as RGB, D-SUB, Bluetooth, WLAN (Wi-Fi), Wi-Fi direct, (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, DLNA (Digital Living Network Alliance), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access) , HSDPA (High Speed Downlink Packet Access), LTE-A (Long Term Evolution / LTE-Advanced), and the like, and a communication standard or protocol for the wireless connection.

1, the client 300 is an apparatus for receiving data such as image information or density information from the network camera 100 through the network 10. The client 300 includes a PC (Personal Computer), an NVR Video Recorder), a DVR (Digital Video Recorder), a notebook, and the like, and may be various devices or servers.

According to an embodiment, the client 300 may have a function of controlling the operation of the camera module 110. [

3A and 3B, when the first concentration detected by the sensor unit 120 is equal to or greater than a predetermined value, the housing 101 of the network camera 100 is placed on one side of the housing 101 And a cooling unit 107 having an opening and closing unit 105 slidably moved so that the formed heat sink 103 is exposed to the outside and configured to circulate outside air into the housing 101 at a predetermined value or less.

Since the opening and closing unit 105 and the cooling unit 107 can be controlled through the control unit 150 according to the value of the first concentration detected by the sensor unit 120, .

More specifically, a power source 140 for driving the camera module 110 and the sensor unit 120, a controller 150, an interface unit 130, an image processing unit 160, and a communication unit 170 are provided in the housing 101, May be formed so that each of the components of the semiconductor device can be protected.

A heat sink 103 may be formed on one side of the housing 101 to prevent overheating of the components.

At this time, the opening and closing part 105 may include a door that slides left and right at a position opposite to the heat sink 103 so that the heat sink 103 is exposed to the outside. At this time, the door can be controlled to be controlled through the controller 150.

In addition, a cooling part 107 may be formed on the inside of the housing 101 to prevent fine particles such as ice, moisture or fine dust from flowing from the other side to the outside of the housing 101.

Here, the cooling unit 107 may be a motor driven by the control unit 150, a cylindrical lid coupled to the shaft of the motor, or a cold fan formed of blades radially arranged on the outer peripheral surface of the lid. According to the embodiment, it is possible to further include auxiliary blades disposed between the main rotary blades and coupled to the outer peripheral surface of the cover.

According to the embodiment, the cooling unit 107 may further include a plurality of cooling fans on the lower side and the left and right sides of the housing 101.

FIG. 4 is an operation process of transmitting density information of fine particles of a network camera according to an embodiment.

1 to 4, the control unit 150 receives a driving signal through a communication unit 170 that communicates with the client 300 through the network 10, 110 and the sensor unit 120 by supplying power to the sensor unit 120 (S100).

At this time, the control unit 150 can operate either the opening / closing unit 105 or the cooling unit 107 for preventing the internal overheating of the housing 101 according to the first concentration information sensed by the sensor unit 120 (S110).

In addition, the control unit 150 may assign an identifier to the first concentration information sensed by the sensor unit 120, convert the first concentration data into first communication data, and transmit the first communication data to the communication unit 170 (S120).

The control unit 150 may be connected to an external sensor 220 installed at a distance from the network camera 100 to receive second concentration information of the surrounding fine particles of the network camera 100 at step S130.

At this time, the controller 150 compares the numerical difference of the first and second density information (S140). When the difference is equal to or greater than a preset value, the controller 150 compares the difference between the first and second density information with respect to any one of the sensor unit 120 and the external sensor 220 An error signal for diagnosing the failure can be generated and transmitted to the client 300 through the communication unit 170 (S150).

Meanwhile, when the difference is less than the predetermined value, the controller 150 may adjust the operation of the camera module 110 according to the value of the first density information (S160).

Then, the controller 150 may assign each of the identifiers identifying the first and second density information to the first communication data and transmit it to the communication unit 170 (S170).

Next, the image processing unit 160 corrects the image acquired from the camera module 110 whose operation is controlled according to the numerical value of the first concentration information sensed by the sensor unit 120, to a predetermined correction value, 170 (S180).

At this time, if the controller 150 generates the error signal, the controller 150 may transmit the first communication data that does not give the identifier to the communication unit 170 (S190).

Thereafter, the communication unit 170 transmits, to the second communication data, the second communication data when the image acquired from the camera module 110 is converted according to whether or not the identifier received from the control unit 150 is received. Data can be merged and transmitted to the client 300 through the network 10 (S195).

5 is an operation process for preventing overheating of a network camera according to an embodiment.

2 to 5, when the camera module 110 captures an image (S200), the controller 150 receives the first density information of the fine particles sensed by the sensor unit 120 (S210 ).

In addition, the control unit 150 may compare the first concentration of the fine particles with the predetermined value through the first concentration information (S220).

At this time, when the first concentration information detected from the sensor unit 120 exceeds a predetermined value, the control unit 150 opens the opening / closing unit 105 to one side through the sliding movement to expose the heat sink (S230) The rotating operation of the rotating fan 107 of the cooling unit 107 can be stopped (S240).

Meanwhile, when the first concentration information detected by the sensor unit 120 is less than a preset value, the control unit 150 may close the opening / closing unit 105 to the other side through sliding movement (S250).

The control unit 150 may operate the rotating fan 107 of the cooling unit 107 to circulate outside air into the housing 101 and to discharge fine particles or foreign substances to the outside S260).

The network camera described above can be applied to not only the configuration and method of the embodiments described above but also all or some of the embodiments may be selectively combined so that various modifications can be made to the embodiments .

10: Network
100: Network Camera
101: Housing of network camera
103:
105: Cooling section
110: camera module
120:
130:
140:
150:
160:
170:
220: External sensor
300: Client
1000: Network Camera System

Claims (5)

A camera module formed to protrude outward from the inside of the housing;
A sensor unit built in the housing close to the camera module and configured to sense a first concentration of the fine particles;
A control unit for driving the camera module and the sensor unit; And
And a communication unit configured to combine the first concentration information sensed by the sensor unit and the image information acquired by the camera module and transmit the combined image information to the client via the network,
The housing includes:
And a cooling unit configured to circulate outside air into the housing, wherein the opening and closing unit slides to expose a heat radiating plate formed on one surface of the housing,
Wherein,
Wherein when the sensed first concentration information exceeds a predetermined value, the heat radiating plate is exposed through the opening and closing part, and when the first concentration information is less than a predetermined value, circulating external air through the cooling part into the housing The network camera comprising:
delete The method according to claim 1,
And an interface unit connected to an external sensor installed apart from the network camera to receive second concentration information of the fine particles,
Wherein,
Generates an error signal for diagnosing whether any one of the sensor unit and the external sensor is faulty and transmits the error signal to the client through the communication unit when the numerical difference between the first and second concentration information is equal to or greater than a predetermined value,
And adjusts the operation of the camera module according to the first concentration when the difference is less than a predetermined value.
The method according to claim 1,
Further comprising an image processing unit for correcting the photographed image according to a value of the sensed first concentration information to a preset correction value.
The method according to claim 1,
Wherein,
When converting any one of the first and second concentration information into first communication data, assigns each identifier for identifying the first and second concentration information to the communication unit,
Wherein,
Wherein the first communication data is merged with the second communication data in which the image is converted according to whether or not the identifier is received, and the first communication data is transmitted to the client via the network.

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