WO2008153275A1 - Real-time remote monitoring system based on wireless sensor network - Google Patents
Real-time remote monitoring system based on wireless sensor network Download PDFInfo
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- WO2008153275A1 WO2008153275A1 PCT/KR2008/002526 KR2008002526W WO2008153275A1 WO 2008153275 A1 WO2008153275 A1 WO 2008153275A1 KR 2008002526 W KR2008002526 W KR 2008002526W WO 2008153275 A1 WO2008153275 A1 WO 2008153275A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
Abstract
A real-time monitoring system based on a wireless sensor network is provided. The real-time monitoring system includes: a wireless sensor network including a plurality of sensor nodes and a sink node, wherein each sensor node and the sink node receive and transmit a data packet therebetween; a gateway which receives and transmits a data packet from and to the sink node in the wireless sensor network; a central management server which receives and transmits a data packet from and to the gateway, extracts information on each sensor node and measure data or image data of the sensor node from the data packet received through the gateway, and stores and manages the extracted data in a database; and a monitoring computer or a Web server which receives the information on each sensor node and the measure data or image data of the sensor node from the central management server in real time and displays the information and the measure data or the image data on a screen, wherein the central management server can store and manage the measure data or the image data of each sensor node of the wireless sensor network, and the monitoring computer and the Web server can perform monitoring of situation of each sensor node in real time irrespective of location of each sensor node.
Description
[ IH- SCRI PTION ]
I lm ention 1 itle]
REAL-TIME REMOTE MONITORING SYSTEM BASED ON WIRELESS SFNSOR NETWORK
[ I echnieal Field]
The present invention relates to a real-time remote monitoring system based on a w ireless sensor network, and more particularly, to a real-time remote monitoring system which receives measure data and image data from each sensor node of a wireless sensor network in real time and displays the measure data or captured images on a screen of a monitoring computer or a Web server so as to perform monitoring in real time at a remote site.
[ Background Art]
A ubiquitous sensor network (USN) is a wireless sensor network constructed with sensor nodes including sensors capable of sensing identification information of objects and surrounding environment information. In the USN. information input through various sensors are processed and managed in real time by an external site connected through a network. An object of the USN is to provide computing and communicating functions to all objects, thereby implementing an environment in which communication is available anytime and anywhere irrespective of types of networks, devices, and services. In general, the USN includes sensor nodes which have sensors capable of sensing identification information and surrounding environment information of objects and communication modules, sensor fields which are groups of sensor nodes, sink nodes which receive information collected by the sensor fields, and gateways which route information transmitted from the sink nodes and transmit the information to a management server via a broadband communication network. In the configuration of the USN, the sink nodes can be connected to the gateways through existing infrastructures such as satellite communication network, wireless LAN, Bluetooth, and wired internet. The USN can be used for sensing occurrence of disasters such as fire, flood, or earthquake and coping with the disasters. In conventional USN, since data are processed by the
management server in a centrally-concentrated manner, there is a problem in that reliabilit) . immediateness. and efficiency for processing and managing data lor disasters. In addition, in the conventional USN. since the occurrence of disasters can be checked by only the management server, there is a problem in that a manager cannot directly check the occurrence of disasters in real time at a remote site where the management server is not located.
[ Disclosure]
[ Technical Problem]
The present invention provides a real-time remote monitoring system based on a wireless sensor network.
The present invention also provides a real-time remote monitoring system which can configure a wireless sensor network to collect information and monitor the wireless sensor network through a Web server in real time at a remote site.
The present invention also provides a real-time remote monitoring system based on a wireless sensor network including an image sensor node, which transmits an image of a remote site to a Web server or the like in real time so as to display the image, so that a manager can visually check a changed situation of the remote site provided with a sensor node anytime and anywhere.
[Technical Solution]
According to an aspect of the present invention, there is a real-time monitoring system based on a wireless sensor network, comprising: a wireless sensor network including a plurality of sensor nodes and a sink node, wherein each sensor node and the sink node receive and transmit a data packet therebetween; a gateway which receives and transmits a data packet from and to the sink node in the wireless sensor network; a central management server which receives and transmits a data packet from and to the gateway, extracts information on each sensor node and measure data or image data of the sensor node from the data packet received through the gateway, and stores and manages the extracted data in a database; and a monitoring computer which receives the information on each sensor node and the measure data or image data of the sensor node from
the central management server in real time and displays the information and the measure data or the image data on a screen, wherein the central management server can store and manage the measure data or the image data of each sensor node of the wireless sensor network, and the monitoring computer can perform monitoring in real time.
In the above aspect of the present invention, each sensor node in the wireless sensor network comprises: a control module which controls whole operations of the sensor node; a sensing module or an image capturing device which senses a specific material, a specific ingredient, or a specific state; and a communication module which receives and transmits the data packet from and to other sensor nodes, and the control module transmits a measure data sensed by the sensing module or an image data acquired by the image capturing device to an upper node of the wireless sensor network or transmits a data packet transmitted from the upper node to a lower node.
In the above aspect of the present invention, the central management server comprises: a controller which controls whole operations of the central management server; a database which stores and manages the information on the sensor node, the measure data, and the image data received from the wireless sensor network; a first communication interface unit which communicates with the gateway; and a second communication interface unit which communicates with the monitoring computer, the controller comprises: a data management module which receives a data packet through the first communication interface unit from the gateway, detects the information of the sensor node and the measure data and the image data of the sensor node from the received data packet, and stores the detected information and data in the database; an analyzing/monitoring module which transmits the information and data detected by the data management module to the monitoring computer so as to display the information and data in real time; a Web server management module which transmits the measure data or the image data of the sensor node to the Web server in real time in response to a request of the Web server; an emergency notifying module which stores and manages threshold values or
threshold ranges of the measure data of the sensor nodes which are previously determined by a manager, checks values of the measure data received in real time through the data management module, and if the checked value of the measure data deviate from a predetermined threshold value or threshold range, transmits a short text message or a multimedia message through an SMS server o\~ an external communication company to a predetermined mobile phone or notifies an emergency to the Web server; and an electric signboard module which converts the measure data received in real time through the data management module into a data in a predetermined format and transmits the data to the external electric signboard.
According to another aspect of the present invention, there is provided a wireless sensor network for a real-time monitoring system, comprising: an image sensor node having an image capturing device and a predetermined sensing module, wherein, if the data sensed by the sensing module is changed, the image sensor node captures an image of a corresponding object with the image capturing device and transmits image data of the captured image through the gateway to the central management server, wherein the central management server cooperates with an external Web server, wherein the central management server transmits the image data transmitted from the image sensor node to the Web server, and wherein the Web server displays an existing image before the change and an image after the change due to the image data on a Web page in real time. [Advantageous Effects]
According to the present invention, since sensor nodes on the wireless sensor network can perform bidirectional communication, measure data and image data measured by the sensor nodes can be transmitted to a central management server, and command data of the central management server can be transmitted to the sensor nodes.
According to the present invention, since the wireless sensor network provided to outdoor site includes image sensor nodes, it is possible to check a situation of the outdoor site in real time through a captured image.
According to the present invention, it is possible to check a situation of outdoor site provided with the wireless sensor network in real time through a Web server, an electric signboard, or the like and to check occurrence of emergency through a mobile phone.
According to a real-time monitoring system based on the wireless sensor network having the aforementioned configuration, it is possible to early monitor occurrence of forest fire and to manage and monitor artificial structures.
[ Description of Drawings]
FIG. 1 is a view illustrating a whole configuration of a real-time remote monitoring system according to an embodiment of the present invention.
FIG. 2 is a schematic view illustrating a configuration of a sensor node of the wireless sensor network in the real-time remote monitoring system according to the embodiment of the present invention.
FIG. 3 is a schematic block diagram illustrating a configuration of a gateway in the real-time remote monitoring system according to the embodiment of the present invention.
FIG. 4 is a schematic block diagram illustrating a configuration of a central management server in the real-time remote monitoring system according to the embodiment of the present invention.
FIG. 5 is a view illustrating an example of a screen of a monitoring Web page oi a Web server in the real-time remote monitoring system according to the embodiment of the present invention.
[Best Mode]
I lereinafter. a real-time remote monitoring system based on a wireless sensor network according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a view illustrating a whole configuration of a real-time remote monitoring system according to an embodiment of the present invention. Hereinafter, the configuration and operations of the system according to the present invention will be described with reference to FIG. I . Referring to FIG. 1. the real-time remote monitoring system 10 according to the present invention
includes a wireless sensor network 20 including a plurality of sensor nodes 1 1 1 U) 1 1 5 and a sink node 1 16. a gateway 30, and a central management server 40. The central management server 40 cooperates with an external monitoring computer 50. an external Web server 60, an external SMS server 70. an external electric signboard 80. and the like. Now, the aforementioned components will be described in detail.
<C'on figuration and Operations of Wireless Sensor Network > The wireless sensor network 20 includes the plurality of sensor nodes 1 1 1 to 1 15 and the sink node 1 16. The sensor nodes may selectively include an image sensor node, a fire sense node, a smoke sense node, a temperature/humidity sense node, and the like. In the system according to the embodiment of the present invention, it is preferable that the wireless sensor network 20 has a linear structure where the sink node 1 16, the sensor nodes, and a terminal node are linearly connected. In addition, as described above, in each sensor node of the wireless sensor network 20 having the linear structure, an activation interval and an inactivation interval having a predetermined time interval are sequentially repeated. The activation interval includes a downlink activation interval in which data/command are transmitted from the sink node to the terminal node, an idle interval, and an uplink activation interval in which data/command are transmitted from the terminal node to the sink node. Preferably, each of the downlink activation interval and the uplink activation interval includes RX. TX, and ACK sequentially, so that bidirectional communication between the sink node and the terminal node can be performed in a single period of the activation interval.
The structure of the wireless sensor network according to the present invention is not limited to the linear structure, but the sink node and the plurality of sensor nodes of the wireless sensor network may be configured in various structures other than the linear structure.
The sink node 1 16 transmits data packets received from the sensor nodes to the gateway or transmits data packets received from the gateway to the sensor nodes.
■ Configuration and Operations of Sensor Node>
FlCi. 2 is a schematic view illustrating a configuration of the sensor node 1 1 1 of the wireless sensor network 20 in the real-time remote monitoring system according to the embodiment of the present invention. Referring to FIG. 2. the sensor node 1 1 1 includes a sensing module 210, a control module 220. and a communication module 230. The sensor node having such a configuration receix es and transmits the data packets from and to a lower node or an upper node of the wireless sensor network having the linear structure, and finally, transmits the data packets to the terminal node or the sink node. The sensing module 210 can be configured variously according to a type of the sensor node. In addition, according to a configuration of the sensing module. an image sensor node, a fire sense node, a smoke sense node, a temperature/humidity sense node, or the like may be configured. For example, the image sensor node has an image capturing device as the sensing module. Hie fire sense node has a fire sensing module. The smoke sense node has a smoke sensing module. The temperature/humidity sense node has a temperature/humidity sensing module.
On the other hand, a sensor node according to another embodiment of the present invention may have a plurality of sensing modules for sensing different components or materials, so that a single sensor node can have various sensing functions. For example, if an image sensor node is provided with an image capturing device and a fire sensing module, the sensor node can perform a fire sense function and an image capturing function simultaneously. The control module 220 controls whole operations of the sensor nodes. The control module receives from the sensing module the measure data or image data sensed or captured by the sensing module 210 and transmits the received measure data or image data to an upper sensor node in the linear structure according to a predetermined protocol. In addition, when the control module receives data packets from the upper sensor node, the control module 220 analyzes the received data packets. The control module transmits the data packets to the lower sensor node, or the control module transmits a response
message to the upper sensor node according to an analyzed command. The communication module 230 transmits data to other sensor nodes or receives data from other sensor nodes according to a predetermined communication protocol under the control of the control module. I he image sensor node among the sensor nodes according to the present inv ention may further have at least one of a displacement sensing module, a slope sensing module, and tension sensing module as well as the image capturing device. Only if a data sensed by a sensing module is changed, the control module drives the image capturing device to capture an image of the site and transmits the image to the central management server, so that a load of a communication line can be reduced. When the displacement, the slope, or the like is changed, the central management server collects image data before and after the change and displays the collected image data on a screen of a monitoring computer or a Web server, so that a manager can accurately monitor the situation of the site. -^Configuration and Operations of Gateway >
1 lereinaftei". a configuration and operations of the gateway 30 will be described. The gateway 30 receives and transmits data packets from and to the sink node 1 16 of the wireless sensor network 20 or receives and transmits data packets from and to the central management server 40. FIG. 3 is a schematic block diagram illustrating a configuration of the gateway 30 in the real-time remote monitoring system according to the embodiment of the present invention. Referring to FIG. 3, the gateway 30 includes a control module 310, a first communication module 320, a second communication module 330, and a power module 340
The control module 310 controls whole operations of the gateway 30. The control module 310 receives and transmits data packets from and to the sink node 1 16 of the wireless sensor network 20 through the first communication module 320 and receives and transmits data packets from and to the central management server 40 through the second communication module 330. The detailed operations of the control module 310 are as follows. If the data
packets are received through the first communication module, the control module transmits the data packets through the second communication module 330 to the central management server 40. If the data packets are received through the second communication module, the control module analyzes the data packets and transmits the data packets through the sink node 1 16 to a destination sensor node.
The first communication module 320 is a communication module which w irelessly receives and transmits data packets from and to a communication module oϊ the sink node of the wireless sensor network. The second communication module 330 is a communication module which receives and transmits data packets from and to the central management server. As the communication module, CDMA, WCDMA, HSDPA. Wibro, or the like may be used. Accordingly, the gateway 30 can receive and transmit data packets from and to the central management server 40 through a commercialized wireless Internet by using the second communication module 330. Preferably, the power module 340 includes a solar cell battery so as to supply power to modules of the gateway. Since the gateway 30 of the system according to the present invention is generally disposed outdoors, the solar cell batterv is more useful for the gateway than a commercialized power supply, and thus, a manager needs not to replace the power supply periodically. Configuration and Operations of central management server> Hereinafter, a configuration and operations of the central management server 40 according to the present invention will be described. The central management server 40 performs bi-directional communication with the gateway 30 to collect sensing information from the wireless sensor network, control operations of the sensor nodes according to the collected sensing information, and store and manage the sensing information in the database server. The central management server 40 cooperates with the monitoring computer 50, the Web server 60, the SMS server 70, the electric signboard 80, or the like, so that the manager can monitor the situation of the site in real time in various manners. MCi. 4 is a schematic block diagram illustrating a configuration of the central
management server 40 in the real-time remote monitoring system according to the embodiment of the present invention. Now, the configuration and operations of the central management server 40 according to the present invention will be described in detail with reference to FIG. 4. Referring to I-'IG. 4. the central management server 40 includes a controller 410 which controls whole operation of the server, a database 420 which stores and manages measure data and image data received from the wireless sensor network and information on the sensor nodes, a first communication interface unit 430 which communicates with the gateway, and a second communication interface unit 440 which communicates with the external monitoring computer. the external Web server, the external SMS server, or the like. The controller 410 includes a data management module 41 1, an analyzing/monitoring module 412. a Web server management module 415, an emergency notifying module 416. and an electric signboard module 418. The central management server 40 having the aforementioned configuration cooperates with the external monitoring computer 50, the external Web server 60, the external SMS server 70. the external electric signboard 80. and the like to provide information received from the sensor nodes in real time and directly controls and drives the operations of the sensor nodes, so that a site where the wireless sensor network is disposed can be monitored in real time. Hereinafter, functions of the central management server 40 according to the present invention will be described in detail.
The data management module 41 1 of the central management server 40 receives the data packets from the gateway through the first communication interface unit 430. analyses the received data packets to detect the information on the sensor nodes, the measure data, and the image data, and stores and manages the detected information and data in the database 420. The analyzing/monitoring module 412 transmits the measure data, the image data, and the information on the sensor nodes detected in real time by the data management module 41 1 through the second communication module 440 to the monitoring computer 50. In addition, the analyzing/monitoring module 412
reads and analyses the measure data of the sensor nodes stored in the database, writes \ arious types of reports such as histogram or charts or statistics result report by using the analyzed result, provides the report to the monitoring computer 50 so as to display the report on the screen or output the report with a printer or the like.
The monitoring computer 50 which cooperates with the central management server 40 displays the measure data of the sensor nodes transmitted from the analv zing/monitoring module 412 on the screen in various predetermined types in real time or displays the image data transmitted from the image sensor node on the screen, so that the manager can monitor the information on the sensor nodes in real time and check the image in real time.
The Web server management module 415 transmits the measure data or the image data transmitted from the sensor nodes to the external Web server 60 in real time according to the request of the Web server 60.
The Web server 60 which cooperates with the central management server 40 displays the measure data and image data transmitted from the Web server management module 415 of the central management server on the Web page in real time, so that the manager can monitor the site in real time through the Internet. In addition, the manager who has an access to the Web server 60 can request the Web server to transmit a measure data of image data of a specific sensor node, and the requested command is transmitted to the central management server 40. The central management server 40 generates data packets for carrying out the requested command from the Web server and transmits the data packets through the gateway to a corresponding sensor node of the wireless sensor network. The central management server receives response data packets from the corresponding sensor node and transmits the response data packets to the Web server.
The emergency notifying module 416 stores and manages threshold values or threshold ranges of the measure data of the sensor nodes which are previously set by the manager. The emergency notifying module 416 checks values of the measure data received in real time through the data management module
41 1. If the checked values of the measure data deviate from the previously-set threshold values or threshold ranges, the emergency notifying module transmits short text message or multimedia message through the SMS server 70 to a mobile phone of the manager or transmits a message of notification of L'mergency to the Web server 60. The Web server which receives the message of notification of emergency displays the occurrence of emergency of the specific sensor node on the Web page in various types according to the message, the manager can be notified with the occurrence of emergency. On the other hand, the manager who receives the message of notification of emergency from the central management server through the mobile phone of the manager can transmit to the central management server a short text message or multimedia message including a command requesting for an image data of surrounding environment of the specific sensor node where the emergency occurs or a command requesting for a current measure data of the sensor node. In addition, the manager which checks the occurrence of the emergency of the specific sensor node through the Web page of the Web server can access the Web server and request the central management server to transmit the image data of the surrounding environment of the sensor node or the measure data of the sensor node.
The central management server 40 which is requested to transmit the image data or the measure data of the specific sensor node transmits the data packets including the data requesting command of the specific sensor node to the gateway 30 by using the first communication interface unit 430. The gateway 30 which receives the data packets including the data requesting command transmits the data packet to the sink node of the wireless sensor network 20. The sink node 1 16 down-links the data packets to the corresponding sensor node and transmits the data packets up-linked from the sensor node to the gateway 30. The central management server stores the received data packets in the database 420 through the data management module, and after that, transmits the data packets to the mobile phone of the manager or the Web server 60.
I he electric signboard module 415 converts the data received in real time through the data management module 41 1 into a data in a predetermined format and transmits the data to the external electric signboard 80. The electric signboard 80 which cooperates with the central management server 40 receives data from the electric signboard module 415 and sequentially displays the received data on a panel of the electric signboard.
-Configuration of Web Server >
1 lereinafter. the Web server 60 according to the embodiment of the present inv ention, which cooperates with the central management server to provide a real-time monitoring function will be described in detail with reference to FIG. 5. FlG. 5 is a view illustrating an example of a screen of a monitoring Web page of the Web server 60 in the real-time remote monitoring system according to the embodiment of the present invention. Referring to FIG. 5, a real-time situation 620. an abnormality management 630, a task/command instruction 640. a statistics/analysis 650. and a system management 660 are provided as main menu to the Web server. The Web server cooperates with the central management server according to a menu selected by the manager to receive and process associated data and image or to transmit request command from the manager to the central management server.
When 'gateway/node situation' is selected among the real-time situation 620 of the main menu, gateway information 600 and topology situation 610 of sensor nodes of each gateway are displayed. When 'real-time monitoring' is selected among the real-time situation 620 of the main menu, the measure data 680 received in real time from the central management server is displayed. When 'real-time image monitoring' is selected among the real-time situation 620 of the main menu, the image 690 received in real time from the central management server is displayed.
When 'abnormality situation' is selected among the abnormality management 630 of the main menu, information included in the emergency notifying message transmitted from the central management server is displayed. In addition, it is determined whether or not the measure data received from the
central management server is included in the previously-set abnormality, and if ihe measure data is included in the abnormality, the measure data is displayed on the corresponding screen 670.
In addition, the manager can select 'abnormality setting' among the abnormality management 630 of the main menu to set the abnormality. In this case, the occurrence of abnormality can be determined based on a result of analysis of the measure data according to the information of the set abnormality. In addition, the manager can select 'task/command instruction' 640 among the main menu to instruct operations or task/command of a specific sensor node. In this case, the Web server transmits the task/command instruction to the central management server, and the central management server re-transmits the task/command instruction through the gateway to the wireless sensor network. The sensor node of the wireless sensor network receives the task/command instruction, generates a response message, and transmits the response message through the gateway to the central management server. The central management server transmits the response message to the Web server. Due to the Web server having the aforementioned configuration, information of sensor nodes, a gateway, and the like of the wireless sensor network according to the present invention can be monitored in real time at a remote site. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. For example, in the embodiment of the present invention, types of the sensor nodes of the wireless sensor network, communication protocol between the wireless sensor network and the gateway, communication method between the gateway and the central management server, and the like can be modified in various manners in order to improve performance of the whole system. The exemplary embodiments should be considered in descriptive sense only and not for purposes of limitation. Therefore, the scope of the invention is defined not by the detailed description of the invention but by the appended claims, and all
differences within the scope will be construed as being included in the present invention. I Industrial Applicability]
A remote monitoring system according to the present invention can be widely used for management of disaster and fire.
Claims
[CLAIMS]
[Claim 1 ]
A real-time monitoring system based on a wireless sensor network, comprising: a wireless sensor network including a plurality of sensor nodes and a sink node. w herein each sensor node and the sink node receive and transmit a data packet therebetween; a gateway which receives and transmits a data packet from and to the sink node in the wireless sensor network; a central management server which receives and transmits a data packet from and to the gateway, extracts information on each sensor node and measure data or image data of the sensor node from the data packet received through the gateway, and stores and manages the extracted data in a database; and a monitoring computer which receives the information on each sensor node and the measure data or image data of the sensor node from the central management server in real time and displays the information and the measure data or the image data on a screen, wherein the central management server can store and manage the measure data or the image data of each sensor node of the wireless sensor network, and the monitoring computer can perform monitoring in real time.
[Claim 2]
The real-time monitoring system of claim 1 , wherein each sensor node in the wireless sensor network comprises: a control module which controls whole operations of the sensor node; a sensing module which senses a specific material, a specific ingredient, or a specific state; and a communication module which receives and transmits the data packet from and to other sensor nodes, and wherein the control module transmits a measure data sensed by the sensing module to an upper node of the wireless sensor network or transmits a data packet transmitted from the upper node to a lower node.
[Claim 3 ] The real-time monitoring system of claim 2. wherein the sensor node further comprises an image capturing device, w herein, if the measure data sensed by the sensing module is changed, the control module drives the image capturing device to capture an predetermined image of a surrounding environment of the sensor node and transmits the captured image data through the gateway to the central management server, and w herein the central management server transmits the images of the surrounding environment captured by the image capturing device of the sensor node before and after the change of the measure data to the monitoring computer so as to display the images on the screen.
[Claim 4]
The real-time monitoring system of claim 1 , wherein the central management server comprises: a controller which controls whole operations of the central management server; a database which stores and manages the information on the sensor node, the measure data, and the image data received from the wireless sensor network; a first communication interface unit which communicates with the gateway; and a second communication interface unit which communicates with the monitoring computer, and wherein the controller comprises: a data management module which receives a data packet through the first communication interface unit from the gateway, detects the information of the sensor node and the measure data and the image data of the sensor node from the received data packet, and stores the detected information and data in the database; and an analyzing/monitoring module which transmits the information and data detected by the data management module to the monitoring computer so as to display the information and data in real time.
[Claim 5]
The real-time monitoring system of claim 4, wherein the controller of the central management server requests a specific sensor node having an image capturing device of the wireless sensor network to perform image transmission and receives the image data from the sensor node.
[Claim 6]
The real-time monitoring system of claim 4. wherein the controller of the central management server further comprises an emergency notifying module, wherein the emergency notifying module stores and manages threshold values or threshold ranges of the measure data of the sensor nodes which are previously determined by a manager, wherein the emergency notifying module checks values of the measure data received in real time through the data management module, and wherein, if the checked value of the measure data deviate from a predetermined threshold value or threshold range, the emergency notifying module transmits a short text message or a multimedia message through an SMS server of an external communication company to a predetermined mobile phone.
[Claim 7]
The real-time monitoring system of claim 4, further comprising a Web server which cooperates with the central management server, wherein the controller of the central management server further comprises a
Web server management module and an emergency notifying module. w herein the Web server management module transmits the measure data or the image data of the sensor node to the Web server in real time in response to a request of the Web server, and w herein the emergency notifying module stores and manages threshold values or threshold ranges of the measure data of the sensor nodes which are previously determined by a manager, w herein the emergency notifying module checks values of the measure data received in real time through the data management module, and wherein, if the checked value of the measure data deviate from a predetermined threshold value or threshold range, the emergency notifying module notifies an emergency to the Web server [Claim 8 ]
The real-time monitoring system of claim 4, further comprising an electric signboard which cooperates with the central management server, w herein the controller of the central management server further an electric signboard module, and w herein the electric signboard module converts the measure data received in real time through the data management module into a data in a predetermined format and transmits the data to the external electric signboard.
[Claim 91
1 he real-time monitoring system of claim 1. wherein the wireless sensor network comprises an image sensor node having an image capturing device and a predetermined sensing module. wherein, if the data sensed by the sensing module is changed, the image sensor node captures an image of a corresponding object with the image capturing device and transmits image data of the captured image through the gateway to the central management server, wherein the central management server cooperates with an external Web server, wherein the central management server transmits the image data transmitted from the image sensor node to the Web server, and wherein the Web server displays an existing image before the change and an image after the change due to the image data on a Web page in real time.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2007-0057055 | 2007-06-12 | ||
| KR1020070057055A KR100925288B1 (en) | 2007-06-12 | 2007-06-12 | Real-time remote monitoring system based on wireless sensor network |
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| WO2011116588A1 (en) * | 2010-03-23 | 2011-09-29 | 中兴通讯股份有限公司 | Integrated network and method for wireless sensor network terminal to join in network |
| ITFI20100058A1 (en) * | 2010-04-01 | 2011-10-02 | Consorzio Naz Interuniversita Rio Per Le Tel | MONITORING SYSTEM |
| CN102323885A (en) * | 2011-05-23 | 2012-01-18 | 中国科学院软件研究所 | Dynamic configuration method of sensing network node operation system |
| CN102546202A (en) * | 2010-12-17 | 2012-07-04 | 无锡江南计算技术研究所 | Unlimited bandwidth network flow monitoring method, device and system |
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| KR20080109128A (en) | 2008-12-17 |
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