KR100933202B1 - Remote automation fire extinguishing system based on ip-usn - Google Patents

Abstract

PURPOSE: An IP-USN based remote automatic extinguishing system is provided, which makes exact countermeasure about situation possible and can suppress fire in an initial stage. CONSTITUTION: An IP-USN based remote automatic extinguishing system comprises a detection sensor(120); a plurality of sensor nodes(110) controlling operation of the automatic fire extinguishing system(160) and collecting surrounding information obtained by an image sensor; a gateway(200) which relays or transmits surrounding information data through the sensor node and wireless telecommunication; and a user server(300) which monitors the spot and transmits a control signal of the sensor node to the gateway. The sensor node includes a sensor connection portion, a communication unit, and a controller(140).

Description

Remote automation fire extinguishing system based on IPSSN

The present invention relates to an IP-USN-based remote automatic fire extinguishing system. In particular, 6LoWPAN (IPv6 over low power Wireless Personal Area Network (WPAN) -based wireless sensor network technology to obtain the ambient information, but the surrounding detection by a sensor In addition to the data, it is possible to monitor the site by using the surrounding image data by the image sensor, so that it is possible to clearly determine whether the sensor is malfunctioning, and to accurately deal with the situation, and wirelessly when the situation occurs. The present invention relates to an IP-USN-based remote automatic fire extinguishing system capable of controlling a fire at an early stage since the operation of the automatic fire extinguishing system can be controlled.

Recently, the development of 'IP-USN' technology that connects IP network to ubiquitous sensor network (USN) has been vigorous. Internet Protocol-Ubiquitous Sensor Network (IP-USN) refers to a technology that integrates USN networks such as sensor nodes, gateways, and sink nodes based on the existing IP infrastructure to ensure broad scalability and mobility.

IP-USN is a next-generation core technology that can provide a variety of services by constructing sensor networks at desired locations in connection with Internet infrastructure such as broadband integrated network (BcN), next-generation Internet address system (IPv6), WiBro, and wireless LAN.

It is realized by combining IP (IPv6) with a low-power wireless sensor network (IEEE 802.15.4) and has the advantage of being able to directly connect with existing Internet services. Competitive technology is ZigBee, a short-range wireless communication technology. If Zigbee is suitable for small sensor networks, IP-USN is suitable for large networks such as uCity.

IP-USN is expected to be widely used in logistics, disaster prevention, military, home network, and U-city. In addition, IP-USN enables home network service to control home appliances freely through various information devices such as mobile phones and wired and wireless Internet.

IP-USN is an IP-based USN communication network that enables each sensor node to communicate with IP and directly interwork with a broadband integrated network (BcN) network. Normally, IP-USN is classified into 'non-IP-USN' and IP-USN which needs to be interworked according to the presence or absence of internet interworking. In the case of non-IP-USN, it refers to a closed network that operates itself as a TV remote control function of a mobile phone using a Bluetooth headset or Zigbee, and a sensor for detecting a wire intrusion.

On the other hand, IP-USN is a field that needs internet interworking. For example, the information collected from sensors such as the meteorological information collection network of the Korea Meteorological Administration or the road freezing information of the road construction is uploaded to the relevant server through the Internet and supplied to the information demander. In the case of a fire station, such an IP-USN technology is required to detect fires through sensors and to track the location information of cargoes from the national unit to the logistics management server.

The technical standard supporting IP-USN has been standardized by IETF 6LoWPAN since 2005. Recently, various communication technology standardization camps such as WIBEEM and ZigBee Alliance are directly applying IP to sensor nodes. .

In order to manage facilities using IP ubiquitous sensor networks based on the 6LoWPAN communication protocol as described above, or to monitor cultural disaster prevention, various types of sensors are generally installed in facilities.

As such, when monitoring is performed by installing only a wireless sensor in a facility or the like, a method of confirming information of various sensors is extremely limited. For example, in order to confirm the detected information, a separate camera is installed or a troublesome workforce checks out by visiting the site.

Due to these problems, there is a lot of situations that are already finished or in progress when trusting the detection information by the detection sensor in the field of facility management, cultural disaster prevention, defense, and the like.

In the case of cultural property facilities, even though candles or lighters are frequently used, the sensor is frequently operated, and even though no fire has occurred, it is determined that a fire has occurred by trusting only the detection information of the sensor, which causes unnecessary dispatch of managers. .

In addition, when the crack detection sensor of a large pier is operating, it is often the situation that the problem of unnecessary on-site dispatch frequently occurs because it is not possible to accurately determine whether a real crack has occurred or a malfunction due to vibration.

The present invention was devised to solve the problems of the prior art as described above, while acquiring peripheral information using 6LoWPAN (IPv6 over low power Wireless Personal Area Network) based wireless sensor network technology, Since the site can be monitored using the surrounding image data by the image sensor as well as the surrounding detection data, it is possible to clearly determine whether the detection sensor is malfunctioning, and to enable accurate situational countermeasures. It is an object of the present invention to provide an IP-USN-based remote automatic fire extinguishing system that enables the control of the fire extinguishing system in a wireless manner.

The configuration means constituting the IP-USN-based remote automatic fire extinguishing system proposed in order to solve the above problems, collects the peripheral information obtained by the sensor and the image sensor, by using a control signal input wirelessly A plurality of sensor nodes for controlling the operation of the automatic fire extinguishing facility, a gateway for receiving peripheral information data through 6LoWPAN wireless communication with the sensor nodes or relaying a control signal to the sensor nodes, and a peripheral information data from the gateway. And a user server for monitoring the site using the image information by the image sensor as well as the detection information by the detection sensor, and transmitting a control signal for controlling the sensor nodes to the gateway. do.

The sensor node may further include a sensor connection unit for interfacing with the sensing sensor and the image sensor, a communication unit performing data transmission and reception with the gateway through a 6LoWPAN wireless communication protocol, and providing peripheral information data input from the sensor connection unit to the communication unit. And, while controlling the detection sensor and the image sensor using a control signal input through the communication unit, characterized in that it comprises a control unit for controlling the operation of the automatic fire extinguishing equipment.

Here, the control unit controls to acquire the surrounding image by driving the image sensor only when the sensing data by the sensing sensor is input from the sensor connection unit or when the image sensor operation control signal is input from the communication unit. .

In addition, the sensor node, the sensor and the image sensor and the automatic fire extinguishing facility is characterized in that the data transmission and reception by serial communication.

According to the IP-USN-based remote automatic fire extinguishing system of the present invention having the above-described problems and solutions, while using the 6LoWPAN (IPv6 over low power Wireless Personal Area Network (WPAN) based wireless sensor network technology to obtain peripheral information, Since the site can be monitored not only by the surrounding sensing data by the sensing sensor but also by surrounding image data by the image sensor, it is possible to clearly determine whether the sensing sensor is malfunctioning and to enable accurate situational countermeasures. have.

In addition, since the operation of the automatic fire extinguishing facility can be controlled remotely and wirelessly when a situation occurs, there is an effect of making it possible to extinguish the fire at an early stage.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention IP-USN based remote automatic fire extinguishing system having the above problems, solutions and effects.

1 is an overall block diagram of an IP-USN based remote automatic fire extinguishing system according to an embodiment of the present invention. As shown in FIG. 1, the IP-USN-based remote automatic fire extinguishing system according to the present invention includes a sensor node 100, a gateway 200, and a user server 300, which are components of a ubiquitous sensor network system.

The sensor node 100 is installed in a plurality of sites to be detected in order to collect the surrounding information. The sensor nodes 100 according to the present invention collect not only peripheral information acquired by general sensing sensors, but also peripheral information acquired by image sensors.

Accordingly, the sensor node 100 according to the present invention receives ambient information from the image sensor 110 as well as the sensor 120 as shown in FIG. The image sensor 110 and the detection sensor 120 may be installed separately from the sensor node 100, or may be boarded and mounted on the sensor node 100.

In the present invention, an important feature is not only to use the general sensor 120 to acquire the peripheral information, but also to determine whether the sensor information acquired by the sensor 120 is information obtained by a normal operation or the surrounding situation. It is provided with an image sensor 110 for acquiring an image, such as a picture, for accurate understanding of the situation.

On the other hand, the image sensor 110 is a component for acquiring an image of a field picture at a desired point in time, rather than capturing a video. The image sensor 110 is not operated in real time, but only when sensed data is sensed by the sensor 120 or a user has an operation command. This will be described later.

On the other hand, the sensor node 100 receives various control signals from the gateway 200 through wireless, and controls the operation of the automatic fire extinguishing facility 160 by using the control signals. Of course, when the input control signal is a signal for controlling the image sensor 110 and the detection sensor 120, the sensor node 100 detects the image sensor 110 and the detection using the input control signal. The operation of the sensor 120 is controlled.

In FIG. 1, the sensor node 100 is configured to be connected to and control the automatic fire extinguishing facility 160 as well as the image sensor 110 and the detection sensor 120, but the image sensor 110 and the detection sensor 120. A separate sensor node 100 that is not connected to may be connected to only the automatic fire extinguishing facility 160 so as to control only the automatic fire extinguishing facility 160.

As shown in FIG. 1, the sensor node 100 includes a sensor connection unit 130, a control unit 140, and a communication unit 150. The sensor connection unit 130 interfaces with the various sensing sensors 120 and the image sensors 110. That is, by performing data transmission and reception with the various sensor 120 and the image sensor 110, receives the peripheral information data from the sensor 120 and the image sensor 110, or from the user server 300 The transmitted user control signal is transmitted to the detection sensor 120 and the image sensor 110.

The communication unit 150 performs data transmission and reception with the gateway 200 through a 6LoWPAN (IPv6 over low power WPAN) wireless communication protocol. Therefore, peripheral information data including sensing data and image data collected through 6LoWPAN wireless communication is transmitted to the gateway 200 or various control signals transmitted from the gateway 200 are input through 6LoWPAN wireless communication.

Meanwhile, the controller 140 provides the peripheral information data input from the sensor connection unit 130 to the communication unit 150 between the sensor connection unit 130 and the communication unit 150, or provides the communication unit 150. Receives various control signals input through the control, and controls the operation of the detection sensor 120 and the image sensor 110 by using the control signals. In addition, the control unit 140 controls the automatic fire extinguishing facility 160 using the control signal when the input control signal is a signal for controlling the automatic fire extinguishing facility 160.

On the other hand, the control unit 140 determines whether the detection data by the sensor 120 is input through the sensor connection unit 130 in real time. In addition, it is determined whether the operation control signal of the image sensor 110 transmitted from the user server 300 is input through the communication unit 150.

The controller 140 drives the image sensor 110 only when sensing data by a sensing sensor is input from the sensor connection unit 130 or when an image sensor operation control signal is input from the communication unit 150. The control signal is generated and transmitted to the image sensor 110. The image sensor 110 receiving the control signal obtains a peripheral image as a still image and transmits the surrounding image to the controller 140 through the sensor connection unit 130.

As a result, the image sensor 110 does not normally operate, but only when the peripheral sensor data is input by the sensor 120 or when there is an image acquisition command by the user, the control of the controller 140 is controlled. And acquire a still image. This also has the advantage of minimizing power consumption.

The user may transmit various control signals from the user server 300 to the sensor node 100 through the gateway 200. Therefore, when a user (administrator) wants to receive an image of surrounding information at a desired time point, the image sensor operation control signal may be transmitted to the control unit 140 of the sensor node 100 through the gateway 200. . Then, the controller 140 receives the image sensor operation control signal and simultaneously controls and drives the image sensor 110.

On the other hand, the user server 300 is set to periodically transmit the image sensor operation control signal, or by the sensor node 100 to periodically drive the image sensor through a preset, it stops periodically through the image sensor The video image may be obtained and transmitted to the user server 300 through the gateway 200.

Here, the sensor node 100 may perform data transmission / reception by serial communication such as RS-232 with the detection sensor 120 and the image sensor 110, or may be integrated and connected to one board.

The various control signals input may include not only an image sensor 110 but also a control signal for controlling the operation of the detection sensor 120, and a control signal for controlling the automatic fire extinguishing facility 160. have. Therefore, when the input control signal is a signal for controlling the detection sensor 120, the control unit 140 controls the operation of the detection sensor 120 and is a signal for controlling the operation of the automatic fire extinguishing facility 160. In this case, the operation of the automatic fire extinguishing facility 160 is controlled.

The sensor node 100 performing the above operation performs data transmission and reception with the gateway 200 through 6LoWPAN wireless communication. That is, the gateway 200 receives peripheral information data through the 6LoWPAN wireless communication with the sensor nodes and relays the information to the user server 300. Meanwhile, the gateway 200 receives various control signals transmitted from the user server 300 and transmits them to the sensor node 100 through 6LoWPAN wireless communication.

The user server 300 receives the ambient information data from the gateway 200 and monitors the site using the image information by the image sensor 110 as well as the detection information by the sensor 120.

Through the user server 300, the user has an event occurs in the vicinity of the monitoring target by the various sensor 120 (for example, whether smoke, fire, heat generated, etc.) In addition, the detection information by the detection sensor may be determined by the image information acquired by the image sensor 110 (image information obtained immediately after the detection data is generated by the detection sensor). In this case, you can see how much the situation is in the field.

The user server 300 may control the sensor nodes 100 by transmitting various control signals to the gateway 200 in order to control the sensor nodes 100. For example, a user (manager) generates an image sensor operation control signal through the user server 300 and transmits the generated control signal to the sensor node 100 through the gateway 200. Then, the controller 140 of the sensor node 100 controls and drives the image sensor 110 even when the sensing data is not input from the sensing sensor 120.

In addition, the user (operator) confirms the occurrence of a situation such as a fire by using the detection information and the image information obtained from the detection sensor 120 and the image sensor 110 input to the user server 300, and remotely The control signal for fire suppression may be generated and transmitted to the sensor node 100 through the gateway 200.

That is, when it is certain that the occurrence of a situation such as a fire occurs through the detection information and the image information, the operation control signal of the automatic fire extinguishing facility 160 is generated through the user server 300, and the operation control signal of the automatic fire extinguishing facility is generated. To wirelessly transmit to the gateway 200.

Then, the gateway 200 transmits an operation control signal of the automatic fire extinguishing facility to the sensor node 100 through 6LoWPAN wireless communication. The control unit 140 of the sensor node 100 receiving the operation control signal operates the automatic fire extinguishing facility 160 using the operation control signal, so that the fire can be quickly suppressed. On the other hand, the automatic fire extinguishing equipment 160 may also perform data transmission and reception by the sensor node 100 and serial communication such as RS-232, or may be integrated into one board.

Since the present invention is based on IP-USN and uses 6LoWPAN wireless communication, IPv6 is applied to a wireless sensor network, and thus, an image sensor, a sensor, and an automatic fire extinguishing system can be directly accessed and controlled in a TCP / IP manner. .

Brief description of the overall operation of the IP-USN-based remote automatic fire extinguishing system described above is as follows.

First, a detection sensor (a sensor for detecting a flame, smoke, heat, or the like) is operated, and when detection data is generated, the controller controls the image sensor to operate. Then, the image sensor obtains a still image image and transmits it to the controller through the sensor connection unit.

The controller, which receives the still image image data, transmits the sensed data to the gateway through IEEE 802.15.4 (IPv6 over low power WPAN) 2.4GHz wireless communication through the communication unit. The gateway transmits the sensing information data and the image information data received through the sensor node to the user server through IEEE 802.11bg 2.4GHz wireless communication or wired communication (LAN, Internet).

The received sensing information data and image information data may be displayed on the screen through the graphical screen interface of the user server. Through the information displayed on the screen, the administrator (user) can check whether the detected information is a malfunction or normal operation, and furthermore, accurately know whether a fire or the like has occurred.

If the confirmed information is not a malfunction and a real situation occurs in a fire or the like, the user server generates an operation control signal of the automatic fire extinguishing facility and transmits an operation control signal to the sensor node through the gateway. Then, the control unit of the sensor node controls the operation of the automatic fire extinguishing equipment connected to it so that the fire can be quickly suppressed. In addition, managers can be dispatched to the field for immediate response.

As described above, according to the present invention, by using the still image image obtained by the image sensor as well as the detection data by the various sensors, it is possible to more accurately grasp the situation of the site, more accurate and faster It is possible to deal with the situation, and to control the operation of the automatic fire extinguishing equipment remotely in the event of a situation, to enable rapid fire extinguishing.

1 is an overall block diagram of an IP-USN based remote automatic fire extinguishing system according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

110: sensor node 110: image sensor

120: detection sensor 130: sensor connection

140: control unit 150: communication unit

160: automatic fire extinguishing equipment 200: gateway

300: user server

Claims (4)

A plurality of sensor nodes which collect surrounding information acquired by the detection sensor and the image sensor and control the operation of the automatic fire extinguishing facility by using a control signal input wirelessly; A gateway for receiving peripheral information data through the 6LoWPAN wireless communication with the sensor nodes to relay or transmit control signals to the sensor nodes; The user server receiving the ambient information data from the gateway to monitor the site using the image information by the image sensor as well as the detection information by the sensor, and transmits a control signal for controlling the sensor nodes to the gateway. Including, The sensor node provides a sensor connection unit for interfacing with the detection sensor and the image sensor, a communication unit for performing data transmission and reception with the gateway through a 6LoWPAN wireless communication protocol, and provides peripheral information data input from the sensor connection unit to the communication unit. IP-USN-based remote automatic fire extinguishing system comprising a control unit for controlling the detection sensor and the image sensor using a control signal input through the communication unit, and controls the operation of the automatic fire extinguishing facility. delete The method according to claim 1, The control unit controls to acquire the surrounding image by driving the image sensor only when the sensing data is input from the sensor connection unit or when the image sensor operation control signal is input from the communication unit. USN-based remote fire extinguishing system. The method according to claim 1, IP-USN-based remote automatic fire extinguishing system, characterized in that the sensor node, the sensor and the image sensor and automatic fire extinguishing equipment performs data transmission and reception by serial communication.

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