KR20070119374A - Circumstances realtime monitoring system based on usn - Google Patents

Abstract

A system for monitoring context in real-time based on the USN is provided to minimize traffic in the USN and enable a monitoring network to fully perform a basic function even if a monitoring server is not operated owing to an obstacle by selecting a single-way asynchronous communication mode centered on an alarm byte. A plurality of sensor nodes forming a context sensor node comprises a context data recognizer for recognizing context data, a context discriminator for generating/interpreting alarm byte data suitable for the recognized context, and a wireless communication protocol for wirelessly transmitting the generated alarm byte data to related nodes in a single way. The context sensor node comprises a local monitoring node classified into a fire/disaster monitoring node(10) and an anti-thief monitoring node(12), an alarm node classified into a local and global alarm node(50) and a video monitoring node(60n) providing video for an area by using an information level and position information of the node received from the local monitoring node. The local alarm node is classified into a fixed local alarm node(42) and a plurality of portable local alarm nodes(44,44n).

Description

Circumstances Realtime Monitoring System Based on USN}

1 is an overall configuration diagram of a USN-based situation real-time monitoring system according to the present invention.

2 is a configuration diagram of a sensor node according to FIG. 1.

FIG. 3 is a flowchart of an operation when an alarm level is smaller than a predetermined level X in the USN based situation real-time monitoring system of FIG. 1.

FIG. 4 is a flowchart illustrating an operation when an alarm level is greater than a predetermined level X in the USN based situation real-time monitoring system of FIG. 1.

5 is a diagram illustrating an example of an alarm byte configuration format for situation determination when various alarms are generated in the USN-based situation real-time monitoring system of FIG. 1.

FIG. 6 is a flowchart illustrating an operation of performing differentiated alarm production for each fire / disaster type in a fire / disaster monitoring node in which temperature, smoke, humidity, and flame sensors are combined to detect a fire / disaster situation.

FIG. 7 is a diagram illustrating an alarm table of a monitoring node used to detect fire / disaster prevention in FIG. 6.

FIG. 8 is a flowchart illustrating an operation of performing differentiated alarm production for each security situation in a security monitoring node in which a contact sensor, a fuselage sensor, an illumination sensor, and an IR sensor are combined to detect a crime situation.

FIG. 9 is a diagram illustrating an alarm table of a monitoring node used for detecting a crime situation in FIG. 8.

10 and 11 are flowcharts illustrating operations for performing differentiated actions according to alarm levels of local alarm nodes (fixed and mobile).

12 is an operation flowchart of performing a differentiated action according to the alert level of the global alert node.

FIG. 13 is a flowchart illustrating operations performed by fire / disaster monitoring and alarm in a node in which a fire / disaster monitoring node and a local alarm node are integrated.

14 is a flowchart illustrating operations performed by the security monitoring and the alarm in a node where the security monitoring node and the local alarm node are integrated.

15 and 16 are schematic hardware block diagrams of the global monitoring server node.

FIG. 17 is a flowchart illustrating an operation of producing global alarms differentiated according to types and proximity of fire monitoring node alarms in the global monitoring server node.

18 is a flowchart illustrating an operation of performing auto focusing of a region of interest in an image monitoring node.

The present invention relates to a real-time monitoring system system, more specifically, real-time monitoring such as fire / disaster prevention, crime prevention based on USN (Ubiquitous Sensor Network) built using various sensor network element technologies such as ZigBee, RFID And a USN-based situation real-time monitoring system designed to reflect USN characteristics in applications requiring an alarm system.

In the conventional wired / wireless real-time monitoring system, the server collects situation data (temperature, smoke, humidity, flame occurrence, etc.) from the monitoring nodes, analyzes the status, and determines an appropriate level of information from the analyzed results to alert the corresponding node. Outgoing server-oriented bidirectional redundant monitoring system.

However, this server-oriented two-way monitoring system can cause communication bottlenecks easily due to excessive traffic in the surveillance network. In addition, there is a possibility that the network is easily paralyzed if the raw sensor data is transmitted from many nodes at the same time. Moreover, the increase of bandwidth due to excessive power consumption and excessive traffic volume for periodic or aperiodic raw data transmission leads to an unnecessary increase in the cost of constructing a surveillance system, and therefore, high difficulty / high cost design is required. In addition, due to the server-intensive information processing system, there is a risk of paralyzing the entire surveillance network when a server fails.

On the other hand, USN is a network in which many nodes work in cooperation, and there is a characteristic that a particular node has a minimum effect on overall network performance. However, in the conventional server-oriented monitoring network, it is difficult to reflect the USN characteristics due to the instability of the server node affecting the entire network, and there is a problem that the USN-based application field is not easy to implement.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a multi-sensor based disaster prevention / fire monitoring system to overcome the inefficiency of the conventional monitoring server-centered redundant real-time monitoring network construction technology. It is to provide a USN network construction plan for real-time monitoring and recognition of USN-based situation operated based on USN terminal node for security monitoring.

In detail, the present invention provides a method for collecting raw sensor data of a conventional real-time monitoring system, determining a situation by a monitoring server, generating an alarm by a monitoring server, and an action system by a monitoring server. In order to drastically improve the network system inefficiency, high cost, and monitoring network paralysis in case of multiple emergency situations due to the synchronized dual transmission structure, a sensor node based on multi-sensor is used to collect data from the sensor node and determine the situation. In addition, alarms and actions are taken.

The technical core of the present invention is to change the supervisory server-oriented decision-making structure, which is a limitation of the prior art, to the USN node-oriented decision structure, and the nodes on the USN in which the USN node is responsible for the alert byte that is the decision result. It is designed and implemented a one-way monitoring network structure so that each node can decode the meaning of alarm byte and take appropriate action by transmitting it to point-to-point or broadcast format. .

To this end, the present invention first proposes a fire / disaster monitoring USN node incorporating hardware / software capable of recognizing a fire / disaster situation by itself, and a security monitoring USN node which can recognize a crime situation by itself. These two nodes have their own sensors, actuators, interface circuits, CPUs, memory, and RF transmit / receive modules tied together in the form of an embedded computer, and these hardware can be manipulated directly to monitor temperature, smoke, humidity, flames, and fuselage. Software that can be judged is installed.

These nodes make an alarm byte by combining the results of self-determined situation, and send this alarm byte to one-way nodes in the USN network by minimizing the traffic in the USN. Surveillance network is implemented to fulfill basic functions faithfully.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described.

First, FIG. 1 is a general configuration diagram of a USN-based situation real-time monitoring system according to the present invention, which is a situation monitoring node 90, relay node (20 ... 20n), global monitoring server node It contains 30.

As shown in FIG. 2, each of the sensor nodes 10, 12, 40, 50, and 60 constituting the situation sensor node 90 generates an alarm byte by combining the result of the situation determination. The situation data recognition unit 92 recognizes the situation data so that the byte can be unidirectionally transmitted to the nodes working in the USN network, and the situation determination unit generates and interprets the alarm byte data suitable for the recognized situation data. 94 and a wireless communication protocol unit 96 such as an RF signal for wirelessly transmitting the generated alert byte data to related nodes. For reference, the wireless communication protocol unit 96 is composed of a network layer 96a, a Mac layer 96b, an 802.14.4 physical layer 96c, and the like.

Specifically, the situation-aware sensor node 90 is an alarm divided into a local monitoring node, a local alarm node 40 and a global alarm node 50 divided into a fire / disaster monitoring node 10 and a crime prevention monitoring node 12. Node, and video monitoring node 60.

The fire / disaster monitoring node 10 is installed in a limited unit space (room, shop, office, etc.), and includes a temperature sensor, a smoke sensor, a humidity sensor, and a flame sensor for fire and disaster prevention applications. It operates in connection with the computer circuit and generates differentiated alarms according to the type of fire (oil, cloth, wood, electric short circuit, gas, etc.) and status and transmits them to the local alarm node 40 or the global monitoring server node 30. Do it.

The security monitoring node 12 has a built-in contact sensor, fuselage detection sensor, IR sensor, illuminance sensor, etc., and generates a differentiated alarm according to day and night classification, intruder status, door opening or closing, local alarm node 40 or global Software that transmits to the monitoring server node 30 is built.

The local alarm node 40 generates a limited alarm in a corresponding area according to the alarm contents transmitted from the local monitoring nodes 10 and 12, and is divided into a fixed type and a mobile type (or a remote control type) according to its type.

The fixed area alarm node 42 is installed in a limited unit space (room, shop, office, etc.), and has a built-in alarm LED, a buzzer, a push button, and the like, connected to an embedded computer circuit such as a CPU, and operates a local monitoring node ( According to the alarm signal level transmitted from 10, 12), it displays the appropriate alarm LED, buzzer sound, fire / disaster prevention by push button, and specific situation occurrence in specific area in case of crime prevention situation.

The mobile area alarm node 44 is a USN remote controller or a mobile terminal (mobile phone, PDA, etc.) that supports the USN protocol or has a wireless mobile communication function with a built-in wireless communication USN protocol such as an RF circuit. ), You can receive the status information (temperature, humidity, smoke) about the area of interest (specific room, shop, office, etc.) from time to time directly, and in case of fire situation, emergency evacuation tips, evacuation site, etc. from the global monitoring server node (30) May receive a direct indication.

In addition, the mobile area alarm node 44 may have a location recognition software, and when the location is isolated in a fire place, accurate location information of the mobile area alarm node holder calculated by the location detection software is transmitted to the global monitoring server node 30. It also includes a function to ensure proper structure by transmitting.

The global monitoring server node 30 is a general computer with hardware and software interworking with the USN and the backbone network (LAN, PSTN, etc.). The global database, user interface, and SMS messages for the situation monitoring information are transferred to the PSTN or the Internet. Function to send and receive.

The global monitoring server node 30 receives local status information including alarm signals regularly or irregularly from a plurality of monitoring nodes installed in the USN, and information statuses (fire signs and progress) common to a plurality of neighboring areas. Analyze and determine the role to deliver the appropriate alarm situation to the global alarm node 50 and the mobile terminal (mobile phone, PDA, etc.).

The global alarm node 50 is a node embedded with a wireless communication USN protocol such as an RF circuit installed in a global space (corridor, living room, lobby, etc.) shared by a plurality of unit spaces (room, shop, office, etc.). It is connected with embedded computer circuits such as CPU and built in alarm and emergency exit indication induction lamps, and it can handle the treatment of contrasting seedlings and non-hazardous areas according to the alarm level transmitted from the global monitoring server.

The video surveillance node 60 uses the alert level transmitted from the fire / disaster surveillance node 10 or the security surveillance node 12 and location information of the corresponding node to direct the camera direction to an area where a situation (invasion, fire, etc.) has occurred. Aim to obtain live video of the situation in the area.

The USN-based situation real-time monitoring system according to the present invention is to maintain the following linkage operation system between the relevant nodes according to the situation (fire / disaster prevention, crime prevention), the alarm level is larger than the level (X) preset by the user It can be divided into small (Fig. 3) and large (Fig. 4).

The sensor node 90 provides two signals, a periodic signal and an aperiodic signal.

The periodic signal is reported once every regular time and sends a non-alarm byte indicating that there is no abnormality in the monitoring node. The aperiodic signal is generated when an emergency situation such as fire or intruder occurs. The alarm byte determined after determination using the alarm byte table of FIG. 7 or FIG. 9 is transmitted to various nodes.

Referring to the operation flowchart when the alarm level of FIG. 3 is less than X, the global monitoring server node 30, the fixed area alarm node 42, and the mobile area alarm node 44 that receive the alarm byte as the aperiodic signal are the alarm byte. Appropriate operation is made according to the level and content, and because the alarm level is less than X, the global alarm node 50 does not generate an alarm.

The monitoring node 10 analyzes and determines the current situation when various situations (fire and intruder) occur, generates an alarm byte, and delivers it to the destination node.

The global monitoring server node 30 analyzes the content of the alarm byte, stores the alarm level and the alarm content in the server, and then transfers the content to various mobile terminals (mobile phones, PDAs) using the SMS service. Here, mobile terminal nodes such as mobile phones and PDAs also correspond to the mobile area alarm node 44, but are distinguished from other mobile area alarm nodes in that they support the SMS service, and other mobile area alarm nodes are directly connected by the SMS service. Unlike receiving data from a monitoring node, SMS data is received through the global monitoring server node 30.

In the case of the fixed area alarm node 42, the alarm byte is received and the contents are analyzed and the user is notified of the current alarm situation using an LED or a buzzer attached to the alarm node according to the content.

In the case of the mobile area alarm node 44, the alarm byte is received and the content is analyzed and the user is informed of the current situation by using an LCD window or other transmission means according to the content.

Meanwhile, the global monitoring server node 30, the fixed area alarm node 42, and the mobile area alarm node 44 that receive the alarm byte, which is a periodic signal, know that there is no abnormality at present, and notify the user that there is no abnormality. .

Since the monitoring node 10 has no abnormality, the monitoring node 10 transmits to the various purpose nodes that there is no abnormality once in a certain period.

 The global monitoring server node 30 recognizes that there is no abnormality after analyzing the alarm byte and transmits the abnormality to a mobile terminal node such as a mobile phone or a PDA.

The fixed area alarm node 42 and the mobile area alarm node 44 receive the alarm byte, and after analyzing the contents, know that there is no error and indicate that there is no error. If the LED or buzzer is operating, the buzzer or LED will stop working.

Referring to the operation flowchart when the alarm level of FIG. 4 is greater than X, the global monitoring server node 30, the local alarm node 40, and the global alarm node 50 that have received the alarm byte as the aperiodic signal are the level of the alarm byte. Depending on the content, the appropriate action will be taken. Since the alarm level is greater than X, the global alarm node 50 also operates unlike in FIG. In addition, unlike FIG. 3, the alarm byte is transmitted to all alarm nodes so that all local alarm nodes 40 and global alarm nodes 50 operate in the zone.

The monitoring node 10 transmits the determined result to various target nodes through the alarm byte after determining the situation according to various situations (fire and intruder), since the target node is all the alarm nodes and global monitoring server nodes in the zone. If multiple monitoring nodes send alarm byte at the same time, alarm byte congestion occurs when various emergency situations occur, so other monitoring nodes except for the node currently sending alarm byte send masking data to stop sending alarm byte. Will receive.

The global monitoring server node 30 analyzes the contents of the alarm byte as in FIG. 3, stores the alarm level and the contents of the alarm in the server, and transfers the contents to various mobile terminals (mobile phones, PDAs) using the SMS service. Done.

In the case of the fixed area alarm node 42, the alarm byte is received and the contents are analyzed and the user is notified of the current alarm situation using an LED or a buzzer attached to the alarm node according to the content.

In the case of the mobile area alarm node 44, the alarm byte is received and the content is analyzed and the user is informed of the current situation by using an LCD window or other transmission means according to the content.

In the case of the global alarm node 50, the alarm byte is received to analyze the content and operate the alarm bell according to the content to help users to evacuate quickly. Unlike the local alarm node 40, the global alarm node 50 is located in the hall, lobby, etc. commonly used by the user, unlike the LED or buzzer generates a strong alarm sound such as alarm.

Meanwhile, the global monitoring server node 30, the local alarm node 40, and the global alarm node 50, which receive the alarm byte as the periodic signal, know that there is no abnormality at present, and notify the user that there is no abnormality.

Since the monitoring node 10 has no abnormality, the monitoring node 10 transmits to the various purpose nodes that there is no abnormality once in a certain period.

The global monitoring server node 30 recognizes that there is no abnormality after analyzing the alarm byte and transmits the abnormality to a mobile terminal node such as a mobile phone or a PDA. Also, unlike in FIG. 3, since the alarm level is a serious situation larger than the predetermined level (X), the situation is not released in the local alarm node 40 or the global alarm node 50 itself, but rather in the global monitoring server node 30. After determining that it is finished (fire suppression, intruder arrest, etc.), the alarm is released by sending an alarm cancel command to the local alarm node 40 and the global alarm node 50, and the mask masked to the monitoring node 10 is released.

Unlike in FIG. 3, the local alarm node 40 and the global alarm node 50 continue to generate an alarm until an alarm release command comes from the global monitoring server node 30, and releases the alarm when the alarm release command arrives.

The following is a detailed description of various monitoring nodes, alarm nodes, server nodes and communication systems and operating methods proposed in the present invention.

Alarm Byte and Alarm Byte Configuration Format

In the present invention, an alarm byte of 2 bytes length is used for determining various signs and situations, and the configuration format of the alarm byte is as shown in FIG. 5.

This alarm byte is composed of alarm level field, monitoring mode field and alarm byte field and has a total length of 2 bytes. The alarm level field is displayed in 3 bits and has a level between Level 0 and Level 7, depending on the urgency of the information to be transmitted. The monitoring mode field is displayed in 3 bits and displays the type of monitoring mode currently being monitored. The value up to the alarm byte (0 to 7 bits) is set or reset through the determination by the situation determination unit 94 embedded in the monitoring node 90. The transmission of monitoring information between all nodes on the USN uses this alarm byte only.

Fire / disaster monitoring node

As shown in Figure 6, through the fire / disaster monitoring node 10 temperature, smoke, humidity, flame sensor combinations, the node itself determines the fire state, fire type and the like.

The flame detection sensor detects a flame that may occur in the early stage of a fire, such as a lighter flame or a gas burner flame, and informs the monitoring node.

In the case of the smoke detection sensor, the smoke generated by the combustible material is detected and notified to the monitoring node.

The humidity sensor and the temperature sensor grasp the current humidity and temperature, and grasp the current temperature situation and humidity according to a predetermined standard to the monitoring node, and deliver it to the monitoring server. Humidity is divided into over-humidity, normal humidity and low-humidity, and the temperature indicates that there is an abnormality when a large temperature difference occurs over a predetermined temperature or in a short time.

In addition, the temperature sensor and the humidity sensor also transmits the humidity and the temperature to the monitoring server, so that the user can grasp the current humidity and the temperature.

The emergency button can be used for emergency rescue by the user in the event of fire or signs of fire. When isolated by smoke or fire, it is used to identify the user's location. In general, when a visitor comes when the user is not in a seat, the visitor may be used to determine that the visitor came.

The combination of the sensor and the button input is used to determine the fire level for various situations. In this case, the criterion is the fire / disaster monitoring node alarm byte table of FIG. 7. Sends 2 bytes of information to the server node 30 and the local alarm node 40.

As described above, since the monitoring node grasps all the situations and transmits them to the server node, the load of the monitoring server is reduced, and since the amount of data is reduced, power consumption can be greatly reduced.

In the case of the temperature sensor and the humidity sensor, it is possible to establish a monitoring environment suitable for various environments because it is determined whether there is an abnormality by the set value.

Crime prevention Watch node

As shown in Figure 8, the security monitoring node 12 is composed of a fuselage detection sensor, a window sensor, a door sensor, and monitors the operation of various sensors and the state of the button in real time.

The fuselage sensor detects human motion using far infrared rays and informs the monitoring node.

Window sensors monitor intruders entering the window, and door sensors monitor intruders entering the door.

Like the fire / disaster prevention monitoring node 10, the security monitoring node 12 also sends various information to related nodes using the alarm table format of FIG.

Local alarm node

The local alarm node 40 is divided into a fixed local alarm node 42 attached to a place and a mobile (or remote control) local alarm node 44 that a user can easily carry.

The fixed area alarm node 42 is installed in a unit room, a unit household or a unit office so that a user can easily recognize a fire alarm situation and is composed of an LED and a buzzer for informing the user of various fire conditions. As shown in FIG. 10, information about a fire situation is received from a monitoring node to generate an alarm to a user according to the level of information. That is, by operating the warning LED, the buzzer, the alarm bell according to the preset alarm level classification criteria (X1, X2) to deliver various situations to the user.

The mobile area alarm node 44 refers to a portable terminal device such as a USN remote controller, a mobile phone, or a PDA for interworking with the global monitoring server node 30. In the case of a mobile phone or a PDA, an alarm message of the monitoring system may be transmitted from the global monitoring server node 30 using SMS, which is a mobile communication service.

Although the mobile area alarm node 44 is not shown, it is composed of a message display device (LCD) that allows a user to check various information and a keypad for user input, and various alarms as shown in FIGS. 11A and 11B. It also has the function of display, location recognition, and general remote control. When the intention of the user in the remote control, or at a predetermined periodic time to transmit the position of the remote control to the global monitoring server node (30).

Global alarm node

The global alarm node 50 is installed in a passage or a corridor as shown in FIG. 12 so that various people can quickly recognize an alarm situation, and guide the user to a safe place during an alarm and an emergency situation informing various alarm situations. It consists of induction lamps for. Induction lamps can receive information about the fire situation from the server in case of fire and induce evacuators in the opposite direction of the flame, and make it visible even in dark places due to smoke and power outages. In addition, for a reliable fire alarm, the global alarm node is attached with a confirmation sensor that can know whether the alarm is working, it is possible to check the operation of the alarm in the server.

Monitoring node and local alarm node integrated node

As shown in FIG. 13 and FIG. 14, the local alarm node 40 may have a form combined with various monitoring nodes (fire / disaster prevention, crime prevention, etc.) 10 and 12, and simultaneously serves as monitoring and alarming. .

Global Monitoring Server Node

The global monitoring server node 30 is an apparatus for transmitting an SMS message to a mobile terminal node as shown in FIGS. 15 and 16, a serial port for communicating with a wireless transceiver, and an internet connection for a backbone network. It consists of a TCP / IP module.

The global monitoring server node 30 serves to record the alarm byte transmitted from the fire / disaster monitoring node 10 or the security monitoring node 12 as usual, and when an alarm occurs, the alarm byte is transmitted to the user's mobile terminal. It is responsible for delivering SMS messages. In addition, it serves to release the alarm of the alarm node (40, 50) at the end of the alarm situation.

Video Surveillance Node

The video monitoring node 60 is configured as a camera which can be driven by a user's request. As shown in FIG. 18, when an alarm situation occurs, the video monitoring node 60 receives coordinate information in which a situation occurs from the global monitoring server node 430 and displays an image of the coordinate. To the user.

The present invention can be variously modified and applied within the scope of the claims without being limited to the above embodiments.

As described above, according to the present invention, by combining the results of whether the sensor nodes are self-determined, the alarm byte is created, and the alarm byte is unidirectionally transmitted to the nodes working in the USN network to minimize the traffic in the USN and to monitor the server. Surveillance network has the advantage of being able to perform basic functions faithfully even when it is not operated due to the fault.

That is, the present invention basically adopts the unidirectional asynchronous communication method based on the alarm byte, so that the traffic in the USN network can be minimized, and it is not a server-oriented monitoring system but a node-based monitoring system. And the whole network can operate normally.

Claims (8)

Sensor node 90 for monitoring various situations and generating alarms, global monitoring server node 30 for storing various data and providing SMS service, and data relaying between the situation sensor node and global monitoring server node. In the USN-based situation real-time monitoring system comprising a relay node 20 in charge of, Each of the sensor nodes constituting the situation recognition sensor node 90 includes a situation data recognition unit 92 for recognizing situation data; A situation determination unit (94) for generating and decrypting alarm byte data suitable for the recognized condition data; USN-based situation real-time monitoring system comprising a wireless communication protocol unit 96 for wirelessly transmitting the generated alert byte data to the related nodes in one direction. The method according to claim 1, Sensor node 90 is aware of the situation, Local monitoring node divided into a fire / disaster monitoring node (10) that can recognize the fire / disaster situation itself, and a security monitoring node (12) for crime prevention monitoring that can recognize the crime situation itself, An alarm node divided into a local alarm node 40 generating a limited alarm in a corresponding area according to an alarm level transmitted from the local monitoring node, and a global alarm node 50 generating a general alarm in a corresponding area, and USN-based situation real-time monitoring system comprising a video monitoring node (60) for providing an image of the area where the situation occurs by using the alarm level transmitted from the local monitoring node and the location information of the node. The method according to claim 2, The area alarm node 40 is divided into a fixed area alarm node 42 installed in a limited unit space and a mobile area alarm node 44 which is a mobile terminal having a USN-specific remote control or USN protocol or a wireless mobile communication function. USN based real-time monitoring system, characterized in that. The method according to claim 1, The alarm byte data comprises an alarm level field, a monitoring mode field, and an alarm byte field, and a corresponding bit is set or reset based on the determination by the situation determining unit (94). The method according to claim 1 or 4, The situation sensor node 90 transmits alarm byte data to the global monitoring server node 30, the fixed alarm node 40, and the mobile alarm node 50 when the alarm level is smaller than the reference value X. USN based real-time monitoring system, characterized in that. The method according to claim 5, The global monitoring server node 30 uses fire / disaster prevention, crime prevention monitoring node alarm byte table to determine the cause and situation of the alarm and delivers an alarm message to the mobile terminal using SMS service. The fixed alarm node notifies the user of the current situation by operating an LED or a buzzer according to the determined situation, The mobile alarm node is a USN-based situation real-time monitoring system, characterized in that to inform the user of the current situation by displaying a predetermined alarm message on the message display (LCD). The method according to claim 1 or 4, The situation sensor node 90 transmits the alarm byte data and the current alarm byte data to the global monitoring server node, the local alarm node (mobile type, fixed type), and the global alarm node when the alarm level is greater than the reference value (X). USN-based situation real-time monitoring system, characterized in that for transmitting the masking data so that the other nodes except the corresponding node to stop the transmission of the alarm byte. The method according to claim 7, The global monitoring server node 30 detects the cause and situation of the alarm using a fire / disaster prevention and crime prevention monitoring node alarm byte table and delivers an alarm message to a mobile terminal using an SMS service. The local alarm node and the global alarm node USN-based real-time monitoring system, characterized in that to inform the user of the current situation by operating the LED, buzzer, alarm, induction light according to the determined situation.

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