KR101459104B1 - Intelligent cctv system detecting emergency with motion analysis and method of emergency detection using the same - Google Patents

Abstract

An intelligent CCTV system capable of detecting emergency by analyzing a motion and a method for detecting emergency using the same are provided. For the purpose, an intelligent CCTV system having a plurality of CCTVs which generate a monitoring image by photographing a monitored area includes: a first smartphone for generating and transmitting a danger signal which includes a current location when an emergency is detected through a predetermined sensor; and an integrated control center for understanding a location of the first smartphone when a danger signal is detected through the predetermined sensor, analyzing the monitored image which is generated in the CCTV, which photographed the location of the first smartphone, among the CCTVs, and determining whether the emergency is a real situation or not. According to the present invention, an emergency can be immediately managed by automatically detecting the emergency through the smartphone.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an intelligent CCTV system for detecting an emergency situation through motion analysis and an emergency situation detection method using the same. [0002]

The present invention relates to an intelligent CCTV system for detecting an emergency situation through motion analysis and a method for detecting an emergency situation using the same. More particularly, the present invention relates to an intelligent CCTV system for detecting an emergency situation using vibration or sound, The present invention relates to an intelligent CCTV system for detecting an emergency situation through motion analysis for driving a CCTV so as to cope with an emergency situation and an emergency situation detection method using the same.

In recent years, CCTV (Closed Circuit Television) systems have been installed in alleyways, roads, and the like inside and outside buildings for the purpose of crime prevention, traffic information collection and monitoring. In a conventional CCTV system, an image transmitted from a CCTV installed in a specific area is displayed on a monitor installed in a management room, and an administrator watches the monitor and performs monitoring activities.

However, these conventional CCTV systems are often used for collecting evidence after analyzing the incident after the occurrence of the incident, and there is a limit to being used for preventing accidents or for responding to accidents. That is, even if CCTV screen is monitored in real time, it is impossible to monitor individual CCTV monitors because there are limited administrators to monitor them.

On the other hand, as the number of incidents such as child abduction and school violence increases, the number of CCTV installations is also increasing, and a method for efficiently utilizing them is also required. Korean Patent Registration No. 10-1198958 discloses a location tracking system having child location and emergency button functions.

In this technique, when the location information of the emergency button 10 on which the GPS carried by children is sent to the center 18, the center 18 has a function of sending the information to the parent cellular phone 19 in a character form. Further, when the emergency button 10 is pressed when a child is in danger of kidnapping or the like, the surrounding CCTV can automatically shoot the scene and the screen can be transmitted to the parent cellular phone 19 through the control center 18.

However, in this case, children are at risk if they can not press the emergency button (10) with the GPS. In addition, if the emergency button 10 is pressed in a normal situation, unnecessary misunderstanding may occur, and reliability of the operation of the emergency button 10 may be lowered when such a task is repeated.

Korean Registered Patent No. 10-1198958 (Registered on November 1, 2012) Korean Registered Patent No. 10-1114989 (registered on Mar. 23, 2012) Korean Registered Patent No. 10-1147193 (Registered May 10, 2012)

Accordingly, an object of the present invention is to provide a smartphone which can automatically detect an emergency situation of a vulnerable measurement such as a child, a student, a woman, and an elderly living alone who are likely to be exposed to accidents such as school violence or abduction through a sensor provided in a smart phone, The intelligent CCTV system that senses the emergency situation by analyzing the motion to enable the emergency officer in charge to inform the emergency situation in real time and to prevent the event in advance and to be able to cope quickly and secure the evidence smoothly, Sensing method.

According to an aspect of the present invention, there is provided an intelligent CCTV system including a plurality of CCTVs for capturing a surveillance region and generating a surveillance image, And transmitting the surveillance image generated in the CCTV, which captures the location of the first smartphone among the plurality of CCTVs, after detecting the position of the first smart phone when the danger signal is received, And an integrated control center to determine whether an actual risk situation has occurred.

The first smartphone may further include an acceleration sensor for sensing an acceleration of the first smartphone, a microphone for receiving an external sound, and a controller for inputting an input through the microphone if the acceleration sensed through the acceleration sensor exceeds a predetermined acceleration. And a smartphone controller for generating the danger signal in the event that the sound input through the microphone matches a predetermined phrase.

The first smartphone includes a timer for counting time, a GPS receiver for receiving a current position from a GPS satellite, and a controller for, when it is determined that the current position received via the GPS receiver has deviated from the predetermined path, And a smartphone controller for generating the risk signal when counted as exceeding the predetermined period.

The integrated control center includes a wireless communication interface for communicating with an external smartphone through a mobile communication network, a network interface for communicating with the plurality of CCTVs through a CCTV network, a map DB for storing maps of the areas where the plurality of CCTVs are installed, An image analyzing unit for analyzing a surveillance image photographed by a plurality of CCTVs; and an image analyzing unit for analyzing the surveillance images photographed on the map stored in the map DB, if it is determined that the power of the first smart phone communicating through the wireless communication interface unit has been turned off for a predetermined time or longer. After determining the final position of the first smartphone, the image analysis unit is controlled to analyze the surveillance image generated in the CCTV capable of capturing the final position of the first smart phone among the plurality of CCTVs, And a central control unit.

The integrated control center includes a wireless communication interface unit for communicating with an external smartphone through a mobile communication network, an image analysis unit for analyzing a surveillance image photographed by the plurality of CCTVs, and a risk situation database storing a risk situation pattern, The image analysis unit controls the image analysis unit to perform object recognition on the surveillance image generated in the CCTV that captures the location of the first smartphone. When the image analysis result matches the dangerous situation pattern stored in the risk situation DB, And controls the wireless communication interface unit to transmit the monitoring image including the notification message to the smartphones that are set to receive the notification message when the danger signal is received from the first smartphone .

Meanwhile, an emergency situation detection method of an intelligent CCTV system including a plurality of CCTVs that photograph a surveillance region to generate a surveillance image is a method of detecting a dangerous state including a present location when a dangerous situation is detected through a predetermined sensor provided in the first smart phone Generating a CCTV signal by capturing a position of the first smartphone and transmitting the generated CCTV signal to the first smartphone when the danger signal is received; And determining whether an actual risk situation has occurred or not.

The step of generating and transmitting the danger signal may further include the step of, when the acceleration sensed by the acceleration sensor included in the first smartphone exceeds a predetermined acceleration, And generating and transmitting the danger signal in the case where the sound input through the microphone matches the predetermined phrase.

Wherein the step of generating and transmitting the risk signal includes the steps of: when a current position received through the GPS receiver of the first smartphone is determined to have deviated from a preset path, Counts the number of departed periods, and counts the number of departed periods exceeding a predetermined period, and generates and transmits the danger signal.

Wherein the step of determining whether or not the actual dangerous situation occurs comprises determining a final position of the first smartphone if it is determined that the power of the first smartphone is turned off for a predetermined time or longer, And analyzing the surveillance image generated in the CCTV capable of capturing the final position of the phone to judge whether or not an actual dangerous situation occurs.

The step of determining whether or not the actual dangerous situation occurs may include performing an object recognition on the surveillance image generated in the CCTV that photographs the place where the first smartphone is located and if the image analysis result matches the dangerous situation pattern, And transmitting the monitoring image including the notification message to the smart phones that are set to receive the notification message when the risk signal is received from the first smartphone.

According to the intelligent CCTV system for detecting the emergency situation through the operation analysis of the present invention and the emergency situation detection method using the system, the dangerous situation is automatically detected through the sensor provided in the smart phone, It is possible to accurately determine whether or not the situation exists.

In addition, by sending a surveillance image containing a notification message to the vicinity of a dangerous situation including a smartphone set to receive a notification message when a danger signal is received, the user can quickly recognize a dangerous situation and respond quickly.

1 is a block diagram illustrating a schematic configuration of an intelligent CCTV system for detecting an emergency situation through analysis of an operation according to an exemplary embodiment of the present invention.
2 is a block diagram illustrating a schematic configuration of a smart phone included in an intelligent CCTV system for detecting an emergency situation through an operation analysis according to an exemplary embodiment of the present invention;
3 is a flowchart illustrating a method for detecting an emergency situation in an intelligent CCTV system according to an exemplary embodiment of the present invention.

Hereinafter, an intelligent CCTV system for detecting an emergency situation through an operation analysis according to a preferred embodiment of the present invention and an emergency situation detection method using the same will be described in detail with reference to the accompanying drawings (hereinafter referred to as "intelligent CCTV system and emergency situation detection method") .

1 is a block diagram showing a schematic configuration of an intelligent CCTV system according to an embodiment of the present invention.

1, the intelligent CCTV system of the present invention includes a plurality of CCTVs 100-1, 100-2, ..., 100-n, a CCTV network 110, an integrated control center 120, a vehicle DB 130, A self network network 140, a mobile communication network 160, a first smart phone 150, and a second through a fourth smart phone 170, 180 and 190.

The plurality of CCTVs 100-1, 100-2, ..., and 100-n are connected to the integrated control center 120 through the CCTV network 110, (120). Pan, tilt, and zoom of the CCTVs 100-1, 100-2, ..., 100-n are controlled by the integrated control center 120, The range is adjusted.

The first to fourth smartphones 150, 170, 180, and 190 communicate with the integrated control center 120 through the mobile communication network 160. The danger signal generated in the first smartphone 150 is transmitted to the integrated control center 120 through the mobile communication network 160 and the surveillance image including the notification message of the integrated control center 120 Are transmitted to the second to fourth smartphones 170, 180, and 190 through the mobile communication network 160.

The first smartphone 150 is equipped with various sensors. When a dangerous situation is detected through these sensors, the first smartphone 150 generates a danger signal including the current position and transmits the generated danger signal to the integrated control center 120 send. The sensors provided in the first smartphone 150 will be described later in detail with reference to FIG.

The integrated control center 120 detects the location of the first smartphone 150 and transmits a plurality of CCTVs 100-1, 100-2, ..., 100- n of the first smartphone 150 is analyzed to determine whether or not an actual dangerous situation occurs.

The integrated control center 120 includes a network interface unit 121, an image storage unit 122, a central control unit 123, a video display unit 124, a wireless communication interface unit 125, an image analysis unit 126, A DB 127, and a risk situation DB 128. [

The network interface unit 121 is connected to the CCTV network 110 and receives monitoring images transmitted from the plurality of CCTVs 100-1, 100-2, ..., 100-n. The network interface unit 121 is connected to the self network network 140 and receives data of the vehicle DB 130 provided in a police station or a tax office.

In the video storage unit 122, the surveillance images photographed by the plurality of CCTVs 100-1, 100-2, ..., 100-n are stored and automatically deleted when a predetermined period of time elapses according to the setting of the administrator.

The image analysis unit 126 analyzes the surveillance image generated in the CCTV that has photographed the location of the first smart phone 150 among the surveillance images received through the network interface unit 121. At this time, the image analysis unit 126 performs an image analysis on the supervised image by performing object recognition. That is, after recognizing the vehicle or person from the background of the surveillance image, it recognizes the behavior pattern of the vehicle or person.

The video display unit 124 displays a monitoring video selected by the administrator or a plurality of CCTVs 100-1, 100-2, ..., 100-n among the plurality of CCTVs 100-1, 100-2, ..., 100- ., 100-n) is displayed.

The wireless communication interface unit 125 communicates with the external smartphones 150, 170, 180, and 190 through the mobile communication network 160. That is, it receives the danger signal transmitted from the first smartphone 150, and transmits the monitoring image including the notification message to the second through fourth smartphones 170, 180 and 190.

In an embodiment of the present invention, the first smart phone 150 may be a smart phone owned by a child in a dangerous situation, the second smart phone 170 may be a smart phone owned by a child's guardian, a third smart phone 180, Is a smartphone owned by a police officer or a civil servant in a corresponding jurisdiction, and a fourth smartphone 190 is a smartphone of users located within a predetermined radius from a place where a dangerous situation occurs. Here, the fourth smartphone 190 may be a smartphone carried by a vehicle owner of a vehicle photographed in the vicinity of a dangerous situation.

The map DB 127 stores the map of the area where the plurality of CCTVs 100-1, 100-2, ..., 100-n are installed and the location of the plurality of CCTVs 100-1, 100-2, ..., Is stored.

The risk situation DB 128 stores a risk situation pattern for various risk situations. For example, when two or more persons are close to each other, when the form of one person is larger than the other person, it is determined that the kidnapper takes the child and stored in the risk situation database 128 in a dangerous situation pattern.

The central control unit 123 controls the plurality of CCTVs 100-1, 100-2, ..., 100-n through the network interface unit 121 and wirelessly controls the first to fourth smartphones 150, And controls the communication interface unit 125.

When the power of the first smartphone 150 communicating through the wireless communication interface unit 125 is determined to have been turned OFF for a predetermined time or longer, the central control unit 123 transmits the first After the final position of the smartphone 150 is grasped, a surveillance generated in the CCTV capable of photographing the final position of the first smart phone 150 among the plurality of CCTVs 100-1, 100-2, ..., 100- And controls the image analysis unit 126 to analyze the image.

When the image analysis result of the image analysis unit 126 matches the risk situation pattern stored in the risk situation DB 128, the central control unit 123 determines that an actual risk situation has occurred, And controls the wireless communication interface unit 125 to transmit the monitoring image including the notification message to the second to fourth smartphones 170, 180, and 190 configured to receive the notification message when the danger signal is received.

The central control unit 123 refers to the vehicle DB 130 connected through the self network network 140 and searches for the vehicle owner of the vehicle photographed in the vicinity of the dangerous situation. And controls the wireless communication interface unit 125 to transmit a monitoring image including a notification message to the smart phone 190 possessed by the vehicle owner.

In addition, when the first smartphone 150 is powered on, the central control unit 123 controls the plurality of CCTVs 100-1, 100-2, ..., 100 -n) so that the photographed monitoring image is displayed on the image display unit 124. [ The central control unit 123 receives the location information of the first smartphone 150 and determines that the moving speed is moving through the vehicle when the moving speed is determined to exceed the predetermined moving speed, ..., 100-n of the CCTVs 100-1, 100-2, ..., 100-n.

For example, the central control unit 123 photographs a surveillance region within a radius of 500 m, and if the moving speed of the first smart phone 150 is determined to exceed 10 km / h, the surveillance region is enlarged within a radius of 5 km And controls a plurality of CCTVs 100-1, 100-2, ..., 100-n such that movement of the first smartphone 150 is captured.

2 is a block diagram illustrating a schematic configuration of a smart phone included in an intelligent CCTV system for detecting an emergency situation through analysis of an operation according to an exemplary embodiment of the present invention.

Referring to FIG. 2, the first smartphone 150 of the present invention includes an acceleration sensor 151, a microphone 152, a GPS receiver 153, a touch panel 154, a wireless communication unit 155, a storage unit 156, a timer unit 157, a speaker unit 158, and a smartphone control unit 159.

The acceleration sensor 151 senses the acceleration of the first smartphone 150. That is, the sensor measures the acceleration or impact of the first smartphone 150, and processes the output signal to measure the dynamic force of the first smartphone 150 such as acceleration, vibration, and impact. When an acceleration exceeding a predetermined acceleration is detected through the acceleration sensor 151, it is determined that an emergency situation has occurred to the owner of the first smartphone 150.

Instead of or in addition to the acceleration sensor, a gyroscope sensor built in a mobile phone can be used. The gyroscope sensor is a sensor that enables recognition of a total of six axes by rotating a conventional acceleration sensor. By using this, it is possible to more specifically recognize the operation or the like of a person possessing the first smartphone. Therefore, if a behavior pattern of a person in the case of an existing crime is patterned and the database is stored and compared with the gyroscope signal of the first smartphone actually recognized in the present system, The probability of detection can be lowered. As a result, related monitoring personnel can be reduced and the system can be operated more efficiently.

The microphone 152 receives an external sound. That is, when a sound that is larger than a predetermined sound volume is detected as a sound that is outside the first smartphone 150 or a sound that matches a predetermined phrase is detected, the sound is received. It is determined that an emergency has occurred to the owner of the first smartphone 150 by the sound thus input.

In addition, by using various sensors mounted on the smartphone, the status of the first smartphone holder can be detected more accurately.

For example, a geomagnetic sensor mounted on a smartphone can be used as an electronic compass to detect the azimuth using a geomagnetic field. Therefore, by using this sensor, it is possible to track the location where the smartphone owner moves to the case where the smartphone owner does not stay at the event occurrence position after the event, and provide the corresponding information.

Further, by using a gravity sensor (G-sensor) for detecting in which direction gravity acts, for example, the direction can be recorded in a vehicle collision situation, and can be used as evidence or the like.

An operation signal generated by sensing the sensor of the smartphone is transmitted to the integrated control system. For this purpose, users of this system, especially children, elderly people, single people, disabled persons, etc., have to go through the consent procedure for transmitting the motion detection signal, which is personal information generated in the system, to the integrated control center in advance.

The GPS receiving unit 153 receives the current position of the first smartphone 150 from the GPS satellites. The current location of the first smartphone 150 received here is transmitted to the integrated control center 120 when it is determined that an emergency occurs.

The touch panel unit 154 displays various functions of the first smart phone 150, receives a user command by touch, and displays a supervisory image including a notification message transmitted from the integrated control center 120.

The wireless communication unit 155 accesses the mobile communication network 160 and transmits a danger signal to the integrated control center 120 and receives a monitoring image including a notification message transmitted from the integrated control center 120.

An application for performing the emergency detection method of the present invention is stored in the storage unit 156, and the application is executed under the control of a smartphone control unit 159, which will be described later.

The timer unit 157 counts time. That is, the time is counted from the moment when it is determined that the current position received through the GPS receiver 153 has deviated from the predetermined path.

The speaker unit 158 outputs a voice corresponding to a supervised image displayed on the touch panel unit 154 or a voice of the other party during a call.

If it is determined that the current location received via the GPS receiver 153 has deviated from the predetermined route, the smartphone controller 159 generates the danger signal when the out-of-route period is counted as exceeding the preset period do.

When the acceleration sensed by the acceleration sensor 151 exceeds a predetermined acceleration, the smartphone controller 159 determines that the sound input through the microphone 152 exceeds a preset sound volume, 152 generates a danger signal including the current position in any one of the cases where the sound input through the input unit 152 matches the predetermined phrase.

When the emergency call button of the first smartphone 150 is pressed, the smartphone control unit 159 generates a danger signal including the danger signal including the current position and transmits the signal to the integrated control center 120 (155).

In an exemplary embodiment of the present invention, a risk signal is generated in the first smartphone 150 and a monitoring image including a notification message is transmitted to the second to fourth smartphones 170, 180, and 190. However, All functions are possible in the smart phones 150, 170, 180, and 190 where the application for performing the situation detection method is installed. That is, it is possible to generate a danger signal, transmit it to the integrated control center 120, and receive the monitoring image including the notification message transmitted from the integrated control center 120.

3 is a flowchart illustrating a method for detecting an emergency situation in an intelligent CCTV system according to an exemplary embodiment of the present invention.

3, when a danger signal is detected in the first smartphone 150 (S200-Y), the first smartphone 150 generates a danger signal including the current position and transmits the signal to the integrated management center 120. [ (S220). That is, if the acceleration detected by the acceleration sensor 151 of the first smartphone 150 exceeds a predetermined acceleration, the sound input through the microphone 152 exceeds a preset sound volume, If so, the first smartphone 150 generates a danger signal including the current position and transmits the signal to the integrated management center 120.

When a danger signal is not detected (200-N) in the first smartphone 150, a surveillance image of a surveillance region photographed from a plurality of CCTVs 100-1, 100-2, ..., 100-n is generated To the integrated control center 120 (S210).

The integrated control center 120 determines the location of the first smartphone 150 in step S230 and determines whether the first smart phone 150 of the plurality of CCTVs 100-1, 100-2, ..., 100- The surveillance image generated in the CCTV where the location is located is analyzed (S240). That is, the central control unit 123 refers to the map DB 127 and grasps the CCTV installed at the current position of the first smartphone 150. And controls the image analysis unit 126 to analyze the surveillance image generated in the CCTV that captures the location where the first smartphone 150 is located.

If it is determined that the actual risk situation has occurred (S250-Y), the integrated control center 120 transmits the monitoring image including the notification message to the second to fourth smartphones 170, 180, and 190 (S260). That is, when the behavior pattern of the image analyzed by the image analysis unit 126 matches the risk situation pattern stored in the risk situation DB 128, the central control unit 123 determines that a dangerous situation has occurred. Then, the central control unit 123 transmits the surveillance video and the notification message to the smartphone 170,180,190 possessed by the guardian, the public official, and the people located in the vicinity of the dangerous situation occurrence area.

Through the above process, the user can automatically detect the dangerous situation using the smartphone and respond to the dangerous situation.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the appended claims. It can be understood that it is possible.

100-1, 100-2, ..., 100-n: a plurality of CCTV
110: CCTV network 120: Integrated management center
130: vehicle DB 140: self network network
150: first smart phone 60: mobile communication network
170, 180, 190: second to fourth smartphones
121: Network interface unit 22: Image storage unit
123: central control unit 24: video display unit
125: wireless communication interface unit 26: image analysis unit
127: Map DB 128: Risk situation DB
151: acceleration sensor 52: microphone
153: GPS receiving unit 54: touch panel unit
155: wireless communication unit 56:
157: Timer unit 58: Speaker unit
159:

Claims (10)

An intelligent CCTV system comprising a plurality of CCTVs for capturing a surveillance region to generate a surveillance image,
A first smartphone for generating and transmitting a danger signal including a current position when a dangerous situation is detected through a predetermined sensor; And
The method of claim 1 or 2, wherein when the risk signal is received, the location of the first smartphone is determined, and the surveillance image generated in the CCTV photographing the location of the first smartphone among the plurality of CCTVs is analyzed, And an integrated control center,
The integrated control center,
A wireless communication interface unit for communicating with an external smartphone through a mobile communication network;
An image analyzer for analyzing a surveillance image photographed by the plurality of CCTVs; And
And a risk situation DB in which a risk situation pattern is stored,
The image analysis unit controls the image analysis unit to perform object recognition on the surveillance image generated in the CCTV that captures the location of the first smartphone. When the image analysis result matches the dangerous situation pattern stored in the risk situation DB, The smartphone which is set to receive a notification message when a danger signal is received from the first smartphone and the vehicle DB connected through the self network are referred to, Wherein the control unit controls the wireless communication interface unit to transmit the monitoring image including the notification message to the smart phone held by the vehicle owner of the vehicle. The method according to claim 1,
The first smartphone comprises:
An acceleration sensor for sensing an acceleration of the first smartphone;
A microphone for receiving an external sound; And
When the acceleration detected by the acceleration sensor exceeds a predetermined acceleration, when the sound input through the microphone exceeds a preset sound volume, and when the sound input through the microphone matches a preset phrase And a smart phone controller for generating the danger signal in the case of any one of the plurality of security cameras. The method according to claim 1,
The first smartphone comprises:
A timer section for counting time;
A GPS receiver for receiving a current position from a GPS satellite; And
And a smartphone controller for generating the danger signal when it is determined that the current position received through the GPS receiver has deviated from the predetermined path and the path deviations are counted as exceeding a predetermined period Intelligent CCTV system that detects the emergency situation by analyzing the characteristic motion. The method according to claim 1,
The integrated control center,
A network interface unit for communicating with the plurality of CCTVs via a CCTV network;
A map DB storing a map of the area where the plurality of CCTVs are installed; And
If it is determined that the power of the first smartphone communicating through the wireless communication interface unit has been turned OFF for a predetermined time or more, after determining the final position of the first smart phone on the map stored in the map DB, And a central controller for controlling the image analyzing unit to analyze a surveillance image generated in the CCTV capable of capturing the final position of the first smartphone to determine whether an actual dangerous situation has occurred, Intelligent CCTV system to detect the situation. delete A method for detecting an emergency situation in an intelligent CCTV system including a plurality of CCTVs for capturing a surveillance region and generating a surveillance image,
Generating and transmitting a danger signal including a current position when a dangerous situation is detected through a predetermined sensor provided in the first smartphone; And
The method of claim 1 or 2, wherein when the risk signal is received, the location of the first smartphone is determined, and the surveillance image generated in the CCTV photographing the location of the first smartphone among the plurality of CCTVs is analyzed, ; ≪ / RTI >
The method of claim 1,
The first smartphone determines that an actual dangerous situation has occurred when the image analysis result matches the dangerous situation pattern by performing object recognition on the surveillance image generated in the CCTV that photographed the location of the first smartphone, By referring to the smartphone which is set to receive a warning message when a danger signal is received and the vehicle DB connected via the self network network, the vehicle owner of the vehicle photographed in the vicinity of the dangerous situation informs the smartphone And transmitting the monitoring image including the message. The method according to claim 6,
Generating and transmitting the hazard signal comprises:
When an acceleration sensed through an acceleration sensor provided in the first smartphone exceeds a predetermined acceleration and when a sound input through a microphone provided in the first smartphone exceeds a predetermined sound volume, And generating and transmitting the danger signal when the sound input through the microphone matches the predetermined phrase. The method according to claim 6,
Generating and transmitting the hazard signal comprises:
If it is determined that the current position received via the GPS receiver of the first smartphone has deviated from the preset path, the controller may count a period of time during which the path deviates through the timer provided in the first smartphone, Wherein the step of generating and transmitting the risk signal comprises the step of generating and transmitting the risk signal. The method according to claim 6,
The method of claim 1,
If it is determined that the power of the first smartphone has been turned off for a predetermined time or longer, after determining the final position of the first smart phone, the CCTV can capture the final position of the first smart phone among the plurality of CCTV And analyzing the monitored surveillance image to determine whether an actual dangerous situation has occurred. delete

Images