KR20160139582A - Network based monitoring system and network based monitoring camera having event notifying function - Google Patents

Abstract

The present invention provides a network based monitoring system and a network based monitoring camera having an event notifying function. The network based monitoring system comprises a monitoring camera, a monitoring server and an event processing part. The monitoring camera is connected to a network, obtains image information from a monitored object in accordance with photography setting, and stores the obtained image information in a local storage or transmits the obtained image information through the network. The monitoring server is connected to the monitoring camera through the network to receive the image information, determines photographing setting by analyzing the received image information, and transmits the received image information to a storage server and at least one among user applications operated in a user terminal. The event processing part detects an event to be displayed to a user based on at least one among an operation environment for the monitoring camera, a state of the network, an operated state of the monitoring camera, whether to request image information by user terminal in real time, whether a control command from the user terminal exists, whether to request a voice talk from the user terminal, a position where the image information is stored, and a result obtained by analyzing the image information. The monitoring camera includes an event display part displaying a state where an event occurs in accordance with an event signal from the event processing part. According to the present invention, various events related to operated states of various monitoring cameras, and a detected event can be effectively notified to a user.

Description

[0001] The present invention relates to a network-based monitoring system and a network-based monitoring camera having an event notification function,

The present invention relates to a network-based surveillance system, and more particularly, to a network-based surveillance system in which an event notification function capable of detecting various events to be notified to a user based on various operation states of a surveillance camera, A network-based surveillance system, and a network-based surveillance camera.

Network-based surveillance cameras that capture images of surveillance objects and share them through networks are widely deployed due to the development of electronics. Network-based surveillance cameras are used to monitor or observe a specific place, and users can access the network-based surveillance camera through the Internet to check the status of the surveillance object in real time. Network-based surveillance cameras have been actively used in the control and monitoring of electronic devices and equipment in the home. As wired / wireless communication technologies such as power line communication and wireless communication have become active, attention and demand for network-based surveillance cameras have increased have. Especially, in Korea, network - based surveillance cameras are now becoming necessities of life. Now surveillance cameras are installed in living spaces ranging from banks to building offices, department stores, bus streets, parking lots of apartments and elevators, and related technologies are rapidly developing. In addition, digital surveillance systems replacing analog surveillance systems are rapidly spreading. These digital video surveillance systems provide images in high quality compared to existing analog surveillance systems and provide convenient functions in various aspects such as retrieving stored images and remote transmission.

As the interest and demand for network based surveillance cameras increase, the users have increasingly desire to receive real time images of the captured images. In order to transmit images captured by network-based surveillance cameras to a large number of users, a communication network must be established. That is, a network-based surveillance camera can be connected to an Internet line coming into the office or home and transmitted as a wireless signal, so that multiple computers can access the same camera simultaneously by sharing one Internet line. Various user terminals can be used to access network-based surveillance cameras. In this way, images captured through the network-based surveillance camera are stored in a server located at a certain place via a router, and the user accesses the corresponding server in order to receive the image if necessary. In this way, in the network-based surveillance system, the surveillance camera is installed as an independent device for shooting various surveillance targets and is often displayed as a closed caption television to the user.

According to Korean Patent Laid-Open No. 10-2011-0023651, "Development of digital camera network for surveillance of digital WiBro network and backup system ", a backup system for storing photographed images through a WiBro network is disclosed. According to this prior art, a vast amount of image information can be efficiently transmitted and stored via a wireless network.

However, since various surveillance cameras are installed in one network-based surveillance system, it is difficult to collectively manage the operation states of various surveillance cameras. For example, when a plurality of surveillance cameras are installed on one surveillance target, it is difficult to manage them when an error occurs in the operation of the specific camera or when a problem occurs in the supply power of a specific camera. In particular, the spread of surveillance cameras has a negative aspect of privacy concerns at the same time. Therefore, there is a need to at least know that people present on the subject are being photographed.

However, in the conventional network-based surveillance system, it is impossible to effectively inform the user of a large number of camera operation states, whether or not the camera is currently being photographed, and the like.

Therefore, a network-based surveillance system and a network-based surveillance camera having an event notification function capable of detecting various events related to the operation of the surveillance camera and easily notifying the detected event to the user are desperately needed.

Korean Patent Laid-Open No. 10-2011-0023651 "Development of surveillance camera and backup system of digital WiBro network charged with solar battery &

SUMMARY OF THE INVENTION It is an object of the present invention to provide a network-based monitoring system having an event notification function capable of effectively notifying a user of various events related to the operation state of a surveillance camera.

It is another object of the present invention to provide a network-based surveillance camera having an event notification function capable of detecting various events and effectively notifying the user of such events.

According to an aspect of the present invention, there is provided a network-based monitoring system having an event notification function. The network-based surveillance system is connected to a network, acquires image information from a surveillance target according to a photographing setting, stores the acquired image information in a local repository, or transmits the surveillance camera through a network; A monitoring server connected to a surveillance camera via a network to receive image information, analyze the received image information to determine a photographing setting, and transmit the received image information to at least one of a storage server and a user application operating on a user terminal; Whether or not the video information is requested from the user terminal in real time, whether or not there is a control command from the user terminal, whether or not a voice conversation is requested from the user terminal, a storage location of the video information And an event processing unit for detecting an event to be displayed to the user based on at least one of the analysis results of the image information. The surveillance camera includes an event display unit for displaying the occurrence status of the event according to an event signal from the event processing unit. In particular, the network-based monitoring system includes an event sensor including at least one of a door open sensor, a smoke detection sensor, a temperature sensor, an acoustic sensor, and an illuminance sensor, The event processing unit detects an event further based on the sensor signal from the event sensor, and the monitoring server determines the shooting setting by referring to the sensor signal from the event sensor. Further, the event processing unit may detect a malfunction state of the network, a malfunction state of the surveillance camera, a presence of a real-time request of the video information from the user terminal, a presence of a control command from the user terminal, At least one of occurrence of an abnormal situation in an object is detected as an event and an event signal is generated. Also, the monitoring server and the user terminal communicate with each other through the network according to the Internet protocol, and the event processing unit detects the network malfunctioning state using the PING signal. In particular, the event display unit includes at least one of an LED flashing according to an event signal and a speaker outputting an event as an acoustic signal.

According to another aspect of the present invention, there is provided a network-based surveillance camera having an event notification function. The network-based surveillance camera includes an interface unit connected to a network; A lens unit for photographing an object to be monitored according to a photographing setting; An infrared light source for irradiating the object to be monitored with infrared light; An image sensor unit for sensing an image photographed from the lens unit and generating an analog signal; An image processing unit for converting an analog signal input from the image sensor unit into a digital signal; A local storage for storing image information converted into a digital signal; Whether or not the video information is requested from the user terminal in real time, whether or not there is a control command from the user terminal, whether or not a voice conversation is requested from the user terminal, storage location of the video information, An event processor for detecting an event to be displayed to a user based on at least one of analysis results of the video information; And a display LED for displaying the occurrence status of the event in accordance with an event signal from the event processing unit. In particular, the network-based surveillance camera is an event sensor that includes at least one of a door open sensor, a smoke detection sensor, a temperature sensor, an acoustic sensor, and an illuminance sensor, The event processing unit detects an event further based on the sensor signal from the event sensor, and the monitoring server determines the shooting setting by referring to the sensor signal from the event sensor. In addition, the event processing unit may detect a malfunction state of the network, a malfunction state of the surveillance camera, a presence of a real-time request of the video information from the user terminal, a presence of a control command from the user terminal, As an event, and generates an event signal. Preferably, the monitoring server and the user terminal communicate with each other through a network according to an Internet protocol, and the event processing unit detects a network malfunction state using the PING signal. In particular, the network-based surveillance camera further includes a speaker for outputting an event as an acoustic signal.

According to the present invention, there is provided a network-based surveillance system having an event notification function capable of detecting various events related to the operation states of various surveillance cameras and effectively notifying a detected event to a user.

Also, according to the present invention, a network-based surveillance camera having an event notification function capable of detecting various events and effectively notifying the user of such events is provided.

1 is a block diagram schematically illustrating a network-based monitoring system according to an aspect of the present invention.
2 is a block diagram schematically showing the configuration of a network-based surveillance camera according to another aspect of the present invention.
FIG. 3 is a timing chart illustrating an operation flow of a surveillance camera, a surveillance server, and an event processing unit in the network-based surveillance system according to the present invention.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. However, the present invention can be implemented in various different forms, and is not limited to the embodiments described. In order to clearly describe the present invention, parts that are not related to the description are omitted, and the same reference numerals in the drawings denote the same members.

1 is a block diagram schematically illustrating a network-based monitoring system according to an aspect of the present invention.

The network-based monitoring system 100 shown in FIG. 1 includes a monitoring camera 110, an event sensor 120, an event processing unit 130, a monitoring server 150, an event display unit 160, A storage server 170, and a user terminal 180.

The surveillance camera 110 is a camera that acquires image information from a monitoring target in accordance with the imaging setting. The surveillance camera 110 converts the analog image information sensed by the image sensor into digital image information and stores the acquired image information in a local storage or transmits the acquired image information to the storage server 170 via the network 190.

The surveillance server 150 receives the digital image information from the surveillance camera 110 through the network 190 and analyzes the received image information to determine the shooting setting. The determined shooting setting may be transmitted to the surveillance camera 110 again as illustrated in FIG. The monitoring server 150 stores the image information received from the surveillance camera 110 in the storage server 170 or transmits the image information to the user application operating on the user terminal 180. The surveillance server 150 manages video information from the plurality of surveillance cameras 110. The user can browse the video information by accessing the surveillance server 150 through the various user terminals 180 .

The event processing unit 130 determines various status information based on the sensor signal from the event sensor 120. [ In the present description, the situation information includes personal static situation information such as a user's physical condition, identity information, hobbies, preferences, etc., using the user terminal 180, and past, current, . That is, the situation information includes static situation information related to the operation characteristics of the surveillance camera 110 and dynamic situation information related to the operation status of the surveillance camera 110. Generally, context information refers to information that defines the characteristics of a situation such as a person, a place, an object, an object, a time, etc. that affect interaction between a user and another user, system, or device in relation to ubiquitous computing. More specifically, the network connection status, the communication bandwidth, and the printer display, the computing situation such as the workstation, the user's profile, the location, the user situation including the people around, ㅇ Traffic condition ㅇ Physical situation, time ㅇ Note ㅇ Monthly ㅇ Time situation such as seasons are all included in the situation information. Such situation information may be grasped through a sensor signal detected by the event sensor 120, used for providing various application services, or used for inference to be tied to other situation information to obtain a third conclusion.

The status information includes status information such as an operation environment of the surveillance camera 110, a network status, an operation status of the surveillance camera 110, a real-time request of video information from the user terminal 180, Presence or absence of a voice conversation request from the user terminal 180, storage location of image information, and analysis results of image information. For example, the operating environment of the surveillance camera 110 may indicate whether the surveillance camera 110 is operated during the daytime or during the nighttime. In this case, the daytime and nighttime may be detected using the event sensor 120, which is an illuminance sensor. In addition, the network status may indicate the network speed, the amount of traffic on the network, whether the network is operating normally, and the operation status of the surveillance camera 110 may include whether the surveillance camera 110 is supplied with normal power, The remaining capacity of the local storage of the network 110, the connection between the surveillance camera 110 and the network 190 is normally performed, and the like.

On the other hand, the image information photographed by the surveillance camera 110 is not necessarily provided to the user at all times. The image information may be provided to the user terminal 180 only when a specific event occurs, for example, when an intruder is detected or when a fire is detected, or only when there is a video provision request from the user terminal 180 Can be provided. Accordingly, the status information may include whether or not there is a request for video information from the user terminal 180. [

Likewise, the situation information may include whether or not a control command for the surveillance camera 110 is received from the user terminal 180. The recent surveillance camera 110 may not only have a fixed photographing angle but may directly control the pan and tilt through the user terminal 180. [ Therefore, when a control command from the user is received, it may be determined that an event has occurred. In addition, the surveillance camera 110 may support a bidirectional voice conversation function through the user terminal 180. When this feature is supported, the user can not only monitor the monitored object manually, but also can have direct voice conversation with the other party as needed. In this case, the context information may include whether or not there is a voice chat request from the user terminal 180. [

Furthermore, the analysis result of the image information can be included in the situation information. For example, in the case of the surveillance camera 110 having a fire detection function, it is determined whether or not a flame or smoke is detected from the image information, In the case of the surveillance camera 110 having the sensing function, whether or not motion is detected in the image information can be included as the context information.

In this manner, the event processing unit 130 according to the present invention combines the sensor signals from the various event sensors 120 to form the situation information, and detects whether or not a specific event is generated from the situation information. When an event is detected, the event display unit 160 notifies the user of the event.

Events to be detected by the event processing unit 130 and corresponding operation scenarios will be described later in detail with reference to FIG.

The event display unit 160 displays the event occurrence state in various ways according to an event signal from the event processing unit 130. [ For example, the event display unit 160 may be an LED (not shown) installed around the lens of the surveillance camera 110. In this case, the LEDs can display different events depending on the number, color, and whether they are blinking. In addition, the event display unit 160 may be implemented as a speaker (not shown) for outputting a sound signal to a user.

In FIG. 1, the network 190 may be implemented by applying any wired or wireless communication technology according to the prior art. In particular, when the network is an Internet network operating according to the Internet protocol, the event processing unit 130 can detect the operation state of the network using the PING signal.

That is, based on the reference value of the PING signal answered from the IP address in accordance with the communication line and the communication company, the event processing unit 130 determines that there is no response to the PING signal from the IP address The network status can be detected based on the number of retries by retrying the PING signal. In addition, the event processor 130 may determine whether the network is operating normally based on whether the ping signal responded from the IP address is out of the range of the reference value. It is needless to say that the reference value (speed value) of the PING signal, the connection waiting time, the number of retries, and the like may be set differently according to the type of the communication line or the communication company or the specification of the network protocol to be used. If there is no response to the PING signal or if it is determined that the PING signal is abnormal, the event processing unit 130 sends the PING signal again to reaffirm the normal operation of the network. Likewise, the number of retries can also be set differently depending on the network conditions.

The storage server 170 refers to a database that stores image information captured by the surveillance camera 110. The storage server 170 can manage the stored image, not only store the image information, but also adjust the resolution of the stored image in combination with the event.

The user terminal 180 may be a smart phone or a tablet PC based on an Android or an iOS or a general personal computer and may be a real time image in real time from an image captured by the surveillance camera 110 and stored in the storage server 170 or from the surveillance camera 110 To the terminal.

Even if the number of surveillance cameras 110 is increased by using the monitoring system 100 as shown in FIG. 1, the operation state of the surveillance camera 110, the state of the network 190, It is possible to easily transmit the event determined based on the signal to the user through the event display unit 160. [

The components of the surveillance system 100 are not necessarily implemented as separate apparatuses as shown in the drawings, and one or more components may be coupled to each other to form one apparatus. For example, the event display unit 160 of the present invention is not necessarily implemented as a separate device from the surveillance camera 110, but may be attached to the surveillance camera 110. It should be noted that the event sensor 120 may also be embedded in the surveillance camera 110.

In addition, according to the present invention, it is possible to display the camera power supply abnormality, the network status, and the motion detection status in the image information by LED color. For example, you do not need a separate device (laptop) to operate, you can check the camera power failure, network connection, and detection status by LED color. In this case, when the motion is detected, it can prevent the crime and reduce the maintenance cost by blinking the LED or outputting the warning message through the speaker.

2 is a block diagram schematically showing the configuration of a network-based surveillance camera according to another aspect of the present invention.

2 includes a lens unit 210 connected to a network, an interface unit 220, an event sensor 230, an image processing unit 240, an event processing unit 250, an infrared light source 260, A local storage 270, a display LED 280, and a speaker 290.

The lens unit 210 photographs an object to be monitored according to the shooting setting. The shooting setting relates to the shooting resolution, the frame rate, the angle of view, the exposure value, the shutter value, the luminance and the illuminance. The shooting setting may be determined by the event processing unit 250 in the surveillance camera 200 itself or may be determined by an external monitoring server. For example, in the case of daytime shooting, the exposure value can be lowered and the luminance can be increased than in the nighttime shooting. The distinction between the daytime and the nighttime can be performed by analyzing the sensor signal of the light intensity sensor as the event sensor 230 as described above. The reason why the shooting setting is different is to obtain the optimum image information according to the different operating environment. In particular, in the case of night-time photographing, the infrared light source 260 irradiates the object to be monitored with infrared rays to obtain an infrared image.

When the image information is generated, the generated image information is transmitted to the event processing unit 250 and the interface unit 220. The interface unit 220 transmits image information to an external device via a network, and the event processing unit 250 detects an event from the received image information. The image information transmitted to the external device may also be used to detect an event by an external monitoring server.

The event sensor 230 included in FIG. 2 may be various sensors such as a door open sensor, a smoke detection sensor, a temperature sensor, an acoustic sensor, and an illuminance sensor. The door opening sensor may be a contact switch for judging whether or not the terminals provided in the door frame and door are in contact with each other, or may be a distance sensor for measuring the distance between both terminals. Or infrared ray transmitters and receivers installed in door frames and doors, respectively, and detect infrared rays transmitted and received between the infrared ray transmitters and receivers. The smoke detection sensor may be a sensor for measuring the concentration of carbon dioxide among the atmospheric components or an image processing apparatus for detecting a flame or a soot image from the image information photographed by the lens unit 210. The temperature sensor senses the temperature around the surveillance camera 200, and can detect the abnormal state of the temperature as a fire condition. The acoustic sensor records the sound generated from the object to be sensed, and can detect a meaningful event from the recorded sound. For example, if a fire alarm rings, it can be determined that a fire has occurred.

The image processing unit 240 may include an image sensor that senses an image photographed from the lens unit and generates an analog signal, and converts an analog signal input from the image sensor unit into a digital signal. The transformed information may be stored in the local repository 270.

The event processing unit 250 has a similar configuration to the event processing unit 130 shown in FIG. 1 and performs similar operations. That is, the event processing unit 250 may be configured to determine whether the video camera 100 is operating normally, the network state, the operation state of the surveillance camera, whether the video information is requested in real time from the user terminal, The storage location of the image information, and the analysis results of the image information.

When an event is detected by the event processing unit 250, it can be notified through the display LED 280 or the speaker 290 that an event has occurred.

The operation scenario in the case where it is determined that the event has occurred according to the determination of the event processing unit 250 is as follows.

- Network malfunction status

If it is determined that the network is operating normally, the display LED 280 may turn on the blue color at all times. On the other hand, when the network malfunctions, the speaker 290 can extract this fact as acoustic information.

- Operation status of surveillance camera

If it is determined that the surveillance camera 200 is operating normally, the display LED 280 may turn on the green light at all times. On the other hand, when the surveillance camera 200 malfunctions, the speaker 290 can extract such fact as acoustic information.

- Real-time request of video information from user terminal

Whether or not the video information is provided to the user terminal can be determined by whether or not the user is connected to the monitoring server. That is, an Internet-based surveillance camera transmits image information through a surveillance server that provides image information to a user terminal. Accordingly, when the user accesses the monitoring server, it is determined that the image information is transmitted to the user terminal, so that the red LED can be constantly turned on.

- control command from the user terminal

When the tilt of the camera and the control command of the fan are received, the red LED can be blinked. Alternatively, it is also possible to output as a sound signal that the control command is being received through the speaker 290.

- Voice chat request

If the user wishes to directly conduct a voice conversation with a user included in the image information, a voice conversation request signal is received at the interface unit 220 through the monitoring server. Then, the user can be notified that the voice conversation is started by constantly turning on the green LED.

- occurrence of abnormal situation

If an abnormal condition occurs such as a fire or an external intrusion, a red LED flashes and a warning message can be output.

Thus, events can be displayed to the user in various ways according to various operational scenarios.

FIG. 3 is a timing chart illustrating an operation flow of a surveillance camera, a surveillance server, and an event processing unit in the network-based surveillance system according to the present invention.

First, the surveillance camera 310 acquires image information. Then, the obtained image information is transmitted to the monitoring server 350. Then, the central control unit 350 analyzes the received image information to determine the shooting setting. For example, when an event such as a motion is detected in a shot image, the shooting setting can be changed to increase the shooting resolution.

In addition, the event processing unit 330 acquires sensor signals from various sensors. The sensor signal may be various sensors such as a smoke detection sensor, a temperature sensor, a door open sensor, an acoustic sensor, and an illuminance sensor as described above. When the sensor signal is acquired, the event processing unit 330 analyzes the sensor signal to detect an event. As described above, an event may include a fire occurrence, a network malfunction state, a power supply failure to a surveillance camera, and the like. In addition, the event processing unit 330 transmits the sensor signal to the monitoring server 350. Then, the surveillance server 350 changes the shooting setting based on the sensor signal and provides it to the surveillance camera 310. That is, the photographing setting can be determined by analyzing the image information received from the surveillance camera 310 or by analyzing the sensor signal received from the event processing unit 330.

If it is determined that an event has occurred, the event processing unit 330 transmits the detected event to the surveillance camera 310. Then, the surveillance camera 310 can display the event through the LED or the speaker to the user.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.

In addition, the method according to the present invention can be embodied as computer-readable code on a computer-readable recording medium. A computer-readable recording medium may include any type of recording device that stores data that can be read by a computer system. Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave (for example, transmission via the Internet) . The computer readable recording medium may also store computer readable code that may be executed in a distributed manner by a distributed computer system connected to the network.

As used herein, the singular " include " should be understood to include a plurality of representations unless the context clearly dictates otherwise, and the terms "comprises & , Parts or combinations thereof, and does not preclude the presence or addition of one or more other features, integers, steps, components, components, or combinations thereof. The terms "part", "unit", "module", "block", and the like described in the specification mean units for processing at least one function or operation, And a combination of software.

Although the operations are described in a particular order in the figures, it should be understood that such operations are performed in a particular order as shown, or that all described operations are performed in a series of sequential orders, or to obtain the desired result. In certain circumstances, multitasking and parallel processing may be advantageous. It should also be understood that the division of various system components in the above embodiments does not require such distinction in all embodiments. The above-described program components and systems can generally be implemented as a single software product or as a package in multiple software products.

Therefore, it should be understood that the present invention and the drawings attached hereto are only a part of the technical idea included in the present invention, and that those skilled in the art will readily understand the technical ideas included in the specification and drawings of the present invention It is obvious that all the variations and concrete examples that can be deduced are included in the scope of the present invention.

The present invention can be applied to a network-based monitoring system.

120: Event sensor
130: Event processor
150: Surveillance Server
160: Event display
170: storage server
180: User terminal
220:
230: Event sensor
240:
250: Event processor
260: Infrared light source
270: Local storage
280: Display LED
290: Speaker
310: Surveillance camera
330: Event processor
350: Surveillance Server
(1) Acquisition of image information
(2) Image information
(3) Analysis of image information
(4) Shooting setting
(5) Sensor signal acquisition
(6) Sensor signal
(7) Shooting setting
(8) Event detection
(9) Events
(10) Event display

Claims (11)

A network-based monitoring system having an event notification function,
A surveillance camera which is connected to the network and acquires image information from the surveillance target according to the photographing setting, stores the acquired image information in a local repository, or transmits the acquired image information through the network;
And a control unit connected to the surveillance camera through the network to receive the image information, analyze the received image information to determine the image capture setting, transmit the received image information to at least one of a storage server and a user application operating on the user terminal Monitoring server; And
Wherein the control unit is further configured to determine whether a video chatting request is received from the user terminal, whether the video chatting request is received from the user terminal, An event processing unit for detecting an event to be displayed to a user based on at least one of a storage location of the image information and an analysis result of the image information,
Wherein the surveillance camera includes an event display unit for displaying an event occurrence status according to an event signal from the event processing unit. The method according to claim 1,
Further comprising an event sensor for detecting an event occurring in a monitored object of the surveillance camera, the event sensor comprising at least one of a door open sensor, a smoke detection sensor, a temperature sensor, an acoustic sensor, and an illuminance sensor,
Wherein the event processor detects the event further based on a sensor signal from the event sensor,
Wherein the monitoring server determines the shooting setting by referring to a sensor signal from the event sensor. The method according to claim 1,
Wherein the event processing unit is operable to detect a malfunction state of the network, a malfunction state of the surveillance camera, a presence of a real-time request for video information from the user terminal, a presence of a control command from the user terminal, And generating an event signal by detecting at least one of the presence, occurrence of an abnormal situation in the monitored object as the event. The method of claim 3,
Wherein the monitoring server and the user terminal communicate with each other through the network according to an Internet protocol,
Wherein the event processing unit detects the network malfunction state using a PING signal. The method according to claim 1,
Wherein the event display unit includes at least one of an LED flashing according to the event signal and a speaker outputting the event as a sound signal. The method according to claim 1,
The surveillance camera includes:
An interface unit connected to the network;
A lens unit for photographing the object to be monitored;
An infrared light source for irradiating the object to be monitored with infrared rays;
An image sensor unit for sensing an image photographed from the lens unit and generating an analog signal;
An image processing unit for converting an analog signal input from the image sensor unit into a digital signal;
A local storage for storing image information converted into a digital signal; And
And a display LED for displaying an occurrence status of an event in accordance with an event signal from the event processing unit. A network-based surveillance camera having an event notification function, which is connected to a surveillance server through a network,
An interface unit connected to the network;
A lens unit for photographing an object to be monitored according to a photographing setting;
An infrared light source for irradiating the object to be monitored with infrared rays;
An image sensor unit for sensing an image photographed from the lens unit and generating an analog signal;
An image processing unit for converting an analog signal input from the image sensor unit into a digital signal;
A local storage for storing image information converted into a digital signal;
Wherein the control unit is further configured to determine whether a video chatting request is received from the user terminal, whether the video chatting request is received from the user terminal, An event processing unit for detecting an event to be displayed to a user based on at least one of a storage location of the image information and an analysis result of the image information; And
And a display LED for displaying an occurrence status of an event in accordance with an event signal from the event processing unit. 8. The method of claim 7,
Further comprising an event sensor for detecting an event occurring in a monitored object of the surveillance camera, the event sensor comprising at least one of a door open sensor, a smoke detection sensor, a temperature sensor, an acoustic sensor, and an illuminance sensor,
Wherein the event processor detects the event further based on a sensor signal from the event sensor,
Wherein the monitoring server determines the shooting setting by referring to a sensor signal from the event sensor. 8. The method of claim 7,
Wherein the event processing unit is operable to detect a malfunction state of the network, a malfunction state of the surveillance camera, a presence of a real-time request for video information from the user terminal, a presence of a control command from the user terminal, And an occurrence of an abnormal situation in the monitored object as the event to generate the event signal. 12. The method of claim 11,
Wherein the monitoring server and the user terminal communicate with each other through the network according to an Internet protocol,
Wherein the event processing unit detects the network malfunction state using a PING signal. 8. The method of claim 7,
Further comprising a speaker for outputting the event as a sound signal.

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