KR20080090909A - System and method for providing sensing data service which interworks sensor network and internet - Google Patents

Abstract

A sensing data service providing system and method by cooperatively operating a sensor network and the Internet are provided to allow a sensor node installed in an area where Internet protocol communication is not possible to communicate with the Internet without allocating Internet protocol information. A sync node(510) includes a sensor processing module(511) for performing conversion of a data frame to transmit data between a sensor node(500) and a gateway(520). A database processing module(521) includes a node information table storing information of the sensor node and a binding table storing mapping information to transfer information between a host(530) and the sensor node. A gateway processing module(523) transmits a command with respect to the use of sensing data of a client, command performing results, and the sensing data to the host. A service processing module(522) processes message transmission with the sync node and processes information according to exchange of a message between the sync node and the host. A client processing module(533) requests node information of the sensor node from the gateway, and receives a service according to the request.

Description

System and method for providing sensing data service interworking sensor network and the Internet {interface sensor network and internet}

1 illustrates a configuration of a conventional sensor network.

FIG. 2 illustrates the structure of the sensor network and server of FIG. 1.

3 is a schematic diagram of an interworking structure of a sensor network and the Internet according to the present invention.

4A and 4B illustrate a connection between a sink node and a gateway according to the present invention.

5 is a diagram illustrating a sensing data service providing system interworking a sensor network and the Internet according to the present invention.

6 illustrates a message configuration between the gateway processing module and the client processing module according to the present invention.

7 is a flowchart illustrating a sensing data service providing method interworking a sensor network and the Internet according to an embodiment of the present invention.

8 is a flowchart illustrating a sensing data service providing method interworking a sensor network and an internet according to another embodiment of the present invention.

9 is a flowchart illustrating a sensing data service providing method interworking a sensor network and the Internet according to another embodiment of the present invention.

10A is a flowchart of a node information table applied at system initialization in a gateway according to the present invention.

10B is a flowchart of configuring a node information table by system operation after system initialization in a gateway according to the present invention.

The present invention relates to a sensing data service providing system and a method thereof, and more particularly, to a sensing data service providing system and a method in which a sensor network capable of providing a sensor network service at a remote location using a gateway and the Internet is interlocked.

Recently, attempts are being made to construct a ubiquitous environment by constructing a ubiquitous sensor network. In the ubiquitous sensor network, the sensing device on the wireless sensor network acquires the surrounding state information, processes it, and transfers it to another node through the wireless interface.

The most representative application of such a wireless sensor network is a data acquisition application that detects and collects and monitors physical phenomena scattered around. For these applications, the wireless sensor network can be considered as a database, and queries about the wireless sense network are generally sent by hosts connected to the Internet. Therefore, the technology for effectively interworking the wireless sensor network and the Internet is a key technology for implementing a ubiquitous sensor network.

It is possible to build a wireless sensor network using sensors with various functions as hardware technologies of micro-micro sensors such as micro-electromechanical systems (MEMS) and nano-technology are developed.

Wireless sensor networks are based on the method of detecting various events occurring in the real world and collecting and processing them through the network. The main applications of wireless sensor networks are scientific or military. It will be widely used in the ubiquitous environment of the future, such as a system that monitors the enemy's direct access, precipitation and geological conditions that are difficult to access, intelligent traffic control system for traffic monitoring and control, and ecological monitoring system through long-term environmental observation. . In addition, the wireless sensor network may be utilized in the form of a wireless sensor device network instructing an operation device based on the detected information.

Recently, marine sensor networks for marine ecosystem analysis and monitoring are also in progress. The development of these various sensor networks is bringing the ubiquitous environment of the future closer to our daily lives.

As mentioned above, wireless sensor networks will be widely used in ubiquitous environments. The most representative application is a data collection application that transmits the information collected through various sensor nodes in the wireless sensor network to the Internet for processing and use on the Internet.

For these data collection applications, the wireless sensor network is considered a database. That is, when a query for information to be obtained through the host is sent, the wireless sensor network interprets the query to obtain desired information, and then sends the information to the sink node to collect information from the sink node.

1 illustrates a configuration of a conventional sensor network.

In general, the sensor network 100 is composed of sensor nodes 101 to 104 collecting event data generated in a surrounding environment and a sink node 110 collecting such data. When the number of sensor nodes is very large, the sensor network 100 may be divided and managed in the form of a cluster. This cluster structure is efficient in that hierarchical routing is possible. In such a cluster structure, there is a node that serves as a cluster head. The cluster head collects sensing data of sensor nodes in the cluster to which it belongs and transmits them to the sensor nodes.

As such, the sink node 110 collects sensing data of the sensor nodes 101 to 104 in the sensor network 100. In this way, the sink node 110 transmits the collected data to the host 130 using the sensed data via the server 120.

FIG. 2 illustrates the structure of the sensor network and server of FIG. 1.

Referring to FIG. 2, the sensor network 200 includes a plurality of sensor nodes 201 to 209 and a sink node 210 that collects sensing data of the sensor nodes, and the sink node 210 includes an application unit ( 211), and serial communication is performed using an RS232 serial (212).

The server 220 also includes an application unit 221, and includes an RS232 serial device 222 to perform direct serial communication with the sink node 210 of the sensor network 200.

However, such a sensor network exists as an independent network, as shown in FIGS. 1 and 2, so that the scope of application of the sensor network and the scope of service are physically limited to the range where the sensor network exists, and thus it is difficult to apply a wide range. Since sensor network is not connected to the Internet, it is not easy to expand the service and systematically manage the sensor network, and because the sensor node itself cannot directly communicate with the Internet protocol, it can communicate directly with any host on the Internet. There is no problem.

Therefore, the first technical problem to be achieved by the present invention is to establish a structure and communication scheme that can be interlocked with the sensor network and the Internet, and to connect the sensor network and the Internet to provide a sensor network service and a remote sensor network service It is to provide a sensing data service providing system interworking.

 In addition, a second technical problem to be achieved by the present invention is to provide a sensing data service providing method interworking with the sensor network using the sensing data service providing system interworking the sensor network and the Internet.

The present invention to achieve the first technical problem,

In the sensing data service providing system including a sink node of a sensor network, a gateway connected to the sensor network and the Internet, and a host receiving a sensing data service, the sink node transmits data between the sensor node of the sensor network and the gateway. And a sensor processing module configured to perform data frame conversion, wherein the gateway includes: a node information table storing information of the sensor node included in the sensor network, and mapping information to perform information transfer between the host and the sensor node. A database processing module including a binding table stored therein, a command for using sensing data of the client, a gateway processing module for transmitting a result of the command and the sensing data to the host, and the sink node; And a service processing module configured to perform message transmission processing and processing of information according to message exchange between the sink node and the host, wherein the host is configured to acquire node information of the sensor node included in the sensing data or the sensor network. It provides a sensing data service providing system interworking the Internet with a sensor network including a client processing module requesting the gateway and receiving a service according to the request.

The present invention to achieve the second technical problem,

A method of providing a sensing data service including a sink node of a sensor network, a gateway connected to the sensor network and the Internet, and a host receiving a sensing data service, the method comprising: transmitting a device discovery and service discovery command from the gateway to the sink node; Collecting and storing information on sensor nodes included in the sensor network in a node information table of the gateway; when a service identifier of sensing data to be used by the host is transmitted to the gateway, the gateway provides a service to the host. Storing an identifier, determining whether a service activation message for receiving a service for a sensor network from the host is transmitted at the gateway, and a service activation message is received from the host. And transmitting the activation message to the sink node, and transmitting the activation message from the sink node to the sensor node to activate the sensor node. Provide a method of providing.

In addition, the present invention to achieve the second technical problem,

A method of providing a sensing data service including a sink node of a sensor network, a gateway connected to the sensor network and the Internet, and a host receiving a sensing data service, the method comprising: transmitting a device discovery and service discovery command from the gateway to the sink node; Collecting and storing information of sensor nodes included in a sensor network in a node information table of the gateway, and when the service identifier of sensing data to be used by the host is transmitted to the gateway, the service identifier of the host by the gateway. Storing, transmitting a service request message for a specific service to be provided from the host to the gateway, and transmitting the service request message from the gateway to the host according to the service request message. It provides a method of providing a sensing data service interworking the Internet with a sensor network comprising providing a service for sensing data.

In addition, the present invention to achieve the second technical problem,

A method of providing a sensing data service including a sink node of a sensor network, a gateway connected to the sensor network and the Internet, and a host receiving a sensing data service, the method comprising: transmitting a device discovery and service discovery command from the gateway to the sink node; Collecting and storing information of sensor nodes included in a sensor network in a node information table of the gateway, and when the service identifier of sensing data to be used by the host is transmitted to the gateway, the service identifier of the host by the gateway. And transmitting the device discovery and service discovery commands from the host to the gateway, and transmitting the updated information of the sensor node from the gateway to the host. The present invention provides a sensing data service providing method interworking with a sensor network and the Internet.

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

However, embodiments of the present invention illustrated below may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. Embodiments of the invention are provided to more fully describe the invention to those skilled in the art.

3 is a schematic diagram of an interworking structure of a sensor network and the Internet according to the present invention.

Referring to FIG. 3, communication between the sensor nodes 301 to 309 and the hosts 351 to 353 is ultimately achieved through the connection between the sink node 310 and the gateway 320 and the gateway 320 and the hosts 351 to 353. Provide services through For this configuration, the sensor network 300 including the sensor nodes 301 to 309 and the sink node 310 and the sink node 310 are connected to perform a connection between the sensor network 300 and the internet 330. The gateway 320 is comprised of hosts 351 to 353 that can be connected anywhere in the Internet, including the gateway.

Meanwhile, the internet protocol routing through the internet 330 may be performed between the gateway 320 and the hosts 351 to 353 to which the user is connected by using the router 340.

4A and 4B illustrate a connection between a sink node and a gateway according to the present invention.

Referring to FIG. 4A, a sink node may directly perform Internet Protocol (IP) communication according to an implementation. If the internet protocol stack is up on the sink node, the internetwork communicates with the gateway directly.

Referring to FIG. 4B, a sink node incapable of internet protocol communication is shown. When the sink node does not have an internet protocol stack as shown in FIG. 4B, an external network device such as a personal personal computer is connected to the gateway using an RS232 serial line of the sink node.

Frame-to-frame conversion in the sensor network and the Internet protocol network may be performed at the sink node.

Meanwhile, internet protocol routing through the Internet may be performed between the gateway and the host to which the user is connected. Each node configured for the integration between the sensor network and the Internet runs applications suited to its role and can provide a service through communication with each other.

5 is a diagram illustrating a sensing data service providing system interworking a sensor network and the Internet according to the present invention.

First, the sensor processing module 511 included in the sink node 510 is located at the sink node, and Internet protocol encapsulation and decapsulation (SIP) is performed to convert a frame between the sensor node 500 and the gateway 520. decapsulation). When receiving a message frame from the sensor node 500 and forwarding the message frame toward the gateway 520 from the sink node 510, the sensor network message frame received from the sensor node 500 is transferred from the sink node 510 to the gateway 520. ) Encapsulates the Internet protocol and delivers it.

Meanwhile, the gateway 520 is responsible for subsequent processing in the service processing module 522. In the direction from the gateway 520 to the sink node 510, a sensor network frame message is generated for the sensor node 500 to obtain data from the service processing module 522, and then the Internet protocol is sent to the sink node 510. When encapsulated and transmitted, the sensor processing module 522 of the sink node recovers the sensor network frame message from the payload through sensor internet protocol decapsulation, and then restores the sensor to the sensor node. It will send a network frame message.

The database processing module 521 provides a management function of database information for providing a service, and includes a node information table and a binding table as a managed database.

The node information table of the gateway maintains and manages a table containing information about sensor nodes operating in the sensor network. The node information table manages information regarding Tables 1 and 2 below.

Table 1 shows the node information table included in the gateway.

As shown in Table 1, the node information table included in the gateway's database processing module includes Mobile IDentifier (MID), address mode, extended address and network address, Internet protocol address, network prefix, service information, and personal area network identifier. At least one of a device type, a state, or a neighbor node list.

On the other hand, Table 2 below shows the node information table structure.

Referring to Table 2, Table 2 indicates an application object number provided by a sensor node as a service identifier, and service meta information indicates meta information related to a service.

The binding table of the gateway maintains a mapping relationship between the host 530 and the sensor node (not shown). Based on this mapping relationship, information transfer between the host 530 and the sensor node (not shown) may be realized.

First, the gateway may transfer information from the sensor node 500 to the host 530 using the binding table. When the host 530 wants a specific service, the host 530 transmits the message to the gateway 520 to register the binding table for the service. The user processing module 523 of the gateway receives this and causes the service processing module 522 to register the service and the host address in the binding table. The service processing module 522 passes the related information as a parameter to the database processing module 521 for this purpose, and the database processing module 521 searches for the node information table in relation to the received service identifier (IDentifier) to obtain related nodes. After extracting the information and the service meta information, and mapping with the previously registered host address and stored in the binding table (not shown). In this case, the service provision type may be specified in the binding table as periodic or event.

That is, when sensing data is received from the sensor node, the gateway 520 queries the binding table to provide a service when a related service is registered. If periodically set, the gateway 520 stores the sensing data in a corresponding buffer address. If the event is set as an event, the sensing data is stored in the corresponding buffer address, and the sensing data is transmitted to the mapped host address.

At this time, the sensing data is written in accordance with the message format used by the user processing module, and then transmitted to the host 530 in the Internet protocol payload.

The host 530 may send a message directly to the sensor node to activate or deactivate a specific service to the sensor node or to request a current sensing data value from the sensor node. The user processing module 523 at the host composes the message in a message format used between the user processing modules 523 and sends it to the gateway 520. The user processing module 523 of the gateway interprets the message and informs the user processing module of the relevant information by passing the parameter. The user processing module passes the service identifier or node information inputted as a parameter to the database processing module to query the node information table and obtains sensor network address information for the sensor node. In this way, the host 530, the sensor node 500, and related service information are added to the binding table. When this is completed, the service processing module 522 prepares a message to be delivered using the obtained sensor node address information into a message frame used in the sensor network, loads the message into the Internet protocol payload, and delivers the message to the sink node 510. The sensor processing module 511 of the sink node extracts the corresponding message from the payload of the internet protocol packet and transmits the message to the sensor node 500.

In addition, the database processing module 521 may transmit information from the host 530 to the sensor node 500 using the binding table.

Table 3 below shows the structure of the binding table. Referring to Table 3, the binding table includes a service identifier, source information, destination information, provided service type, service meta information, service type, and buffer address.

Table 4 below shows the address information structure of the binding table. Referring to Table 4, the address information structure of the binding table may include a mobile identifier, an internet protocol address, a network length, an address mode, an extended address, and a network address.

Meanwhile, the gateway 520 and the host 530 are internally connected to the gateway processing module 523 and the client processing module 533, and exchange a predefined message therebetween to exchange a predefined message between the user and the execution result of the command. And sensing data and the like. The gateway processing module 523 is performed at the gateway 520, and the client processing module 533 operates at the host 530. The gateway processing module 523 is responsible for the interface between the client of the client processing module 533 and the service processing module 522, and the information transferred between the gateway processing module 523 and the client processing module 533 is an internet protocol payload. It is delivered in the form, it may be configured in the form of Figure 5 as follows.

6 illustrates a message configuration between the gateway processing module and the client processing module according to the present invention.

Referring to FIG. 6, commands of the gateway processing module and the client processing module may basically include information of service registration, service release, or service request as a message type.

Service registration may include whether to register in the form of a periodic service or an event service. The service release may include information for releasing the registered service, and the service request may include information for instructing the sensor network to perform or stop a specific service.

On the other hand, the unit of data length is a byte, and stores the data in the unit of byte, the data can be used in the predefined structure to pass the parameter according to the command, in which case the parameter values assigned to the structure is located and to deliver If present, it is located next.

If the command does not require a parameter, the data to be transferred immediately is located. According to the command, a corresponding structure is used, but basically, node information, operation range, and service type information may be included as follows.

The node range includes information of whether the range of target nodes to be delivered is all nodes, some nodes, or specific nodes.

And, the operation range may determine whether to perform only the gateway or to be transmitted to the sensor network according to the operation. When only the gateway is performed in the operation range, the storage information of the gateway is used, and when the gateway is transmitted to the sensor network, the sensor network information is used on-demand to the sensor network.

In addition, the service type defines a service providing type, and may determine whether to provide a periodic service or an immediate event service when a specific event occurs.

7 is a flowchart illustrating a sensing data service providing method interworking a sensor network and the Internet according to an embodiment of the present invention.

Referring to FIG. 7, first, a device discovery and service discovery command is transmitted from a gateway to a sink node in step 710.

The gateway may send a discovery command to the sink node. The discovery command includes a device command for searching for address information of a node and a service command for searching for service information provided by a node, and may be performed only once.

Thereafter, the gateway may re-execute the discovery command by an operator's command, and the execution mode may be executed only once or may be changed to be periodically executed.

Next, the gateway collects the information of the sensor node included in the sensor network and stores the information in the node information table of the gateway (step 720).

As described above, the gateway collects node information about sensor nodes and stores the node information in the node information table of the gateway.

Meanwhile, as described above, the node information table may include at least one of an identifier assigned to the sensor node by the gateway, an address used by the sensor network, an internet protocol address, or neighbor node information of the sensor node.

More specifically, the gateway transmits a discovery command to a sink node to perform a discovery command in the sensor network, transmits the result data according to the discovery command in the sensor network to the gateway, and transmits the transmitted result data to the node of the gateway. Can be stored in an information table.

Next, when the host transmits the service identifier for the sensing data to be used by the host to the gateway, the service identifier for the host is stored in the binding table of the gateway (S730).

The host transmits to the gateway a service identifier that it wants to receive from the sensor node of the sensor network. In practice, sensor nodes in the sensor network may be configured to sense various data.

For example, the sensor node may be configured to sense various sensing data such as light, sound, vibration, humidity, and temperature, and thus the host may be configured to sense data to be provided among the sensor nodes included in a specific sensor network. Send the service identifier for the gateway.

Then, when the gateway stores the service identifier of the host in the binding table and receives the sensing data from the sensor network, if the corresponding service identifier is stored, the gateway can provide the service for the sensing data by transmitting the sensing data to the host. Can be.

In operation 740, the gateway determines whether the service activation message is transmitted from the host and if the service activation message is transmitted from the host, the activation message is transmitted to the sink node (step 740).

The host can activate or deactivate a service for a particular service. To this end, when a service activation message is delivered to the gateway, the gateway queries the node information table for the service and stores the host and node information in the binding table. Then, the service activation message is created in the node information table, stored in the internet protocol payload, and transmitted to the sink node.

Finally, in step 750, the sink node activates the sensor node providing the service according to the service activation message.

Each sensor node then activates the sensor node according to the transmitted service activation message and prepares to transmit sensing data.

In addition, in the case of the service release message, the service release message is transmitted from the host to the gateway, and the gateway may retrieve the service identifier to be released from the binding table and delete the corresponding service identifier from the binding table.

8 is a flowchart illustrating a sensing data service providing method interworking a sensor network and the Internet according to another embodiment of the present invention.

Referring to FIG. 8, first, a device discovery and service discovery command is transmitted from a gateway to a sink node in step 810.

The gateway may send a discovery command to the sink node. The discovery command includes a device command for searching for address information of a node and a service command for searching for service information provided by a node, and may be performed only once.

Thereafter, the gateway may re-execute the discovery command by an operator's command, and the execution mode may be executed only once or may be changed to be periodically executed.

Next, the gateway collects the information of the sensor node included in the sensor network and stores it in the node information table of the gateway (step 820).

As described above, the gateway collects node information about sensor nodes and stores the node information in the node information table of the gateway.

Meanwhile, as described above, the node information table may include at least one of an identifier assigned to the sensor node by the gateway, an address used by the sensor network, an internet protocol address, or neighbor node information of the sensor node.

More specifically, the gateway transmits a discovery command to a sink node to perform a discovery command in the sensor network, transmits the result data according to the discovery command in the sensor network to the gateway, and transmits the transmitted result data to the node of the gateway. Can be stored in an information table.

Next, the service request message for the specific service is transmitted from the host to the gateway (S830).

In the service request message transmitted from the host to the gateway, when the input parameter of the system is the gateway, the sensing data information received from the binding table is read and transmitted to the host, and when the input parameter of the system is set to the sensor network, the binding is performed. Extracts node information that is mapped by querying the corresponding service identifier from the table, and writes the sensing data request message used in the sensor network.

Finally, when the host uses the gateway as an input parameter of the system, the sensing data information about the corresponding service identifier is transmitted to the host in step 840.

On the other hand, when the host uses the sensor network as an input parameter of the system, it extracts node information mapped by searching for each service identifier from the binding table and delivers a service request message for sensing data to the sensor node through the sink node. The sensing data is collected from the sensor node and received at the gateway through a sync code, and the received sensing data information is stored as information on a corresponding service identifier of a binding table, and the service is transmitted to a host requesting a service.

9 is a flowchart illustrating a sensing data service providing method interworking a sensor network and the Internet according to another embodiment of the present invention.

Referring to FIG. 9, first, a device discovery and service discovery command is transmitted from a gateway to a sink node in step 910.

The gateway may send a discovery command to the sink node. The discovery command includes a device command for searching for address information of a node and a service command for searching for service information provided by a node, and may be performed only once.

Thereafter, the gateway may re-execute the discovery command by an operator's command, and the execution mode may be executed only once or may be changed to be periodically executed.

Next, the gateway collects information on sensor nodes included in the sensor network and stores the information in the node information table of the gateway (step 920).

As described above, the gateway collects node information about sensor nodes and stores the node information in the node information table of the gateway.

Meanwhile, as described above, the node information table may include at least one of an identifier assigned to the sensor node by the gateway, an address used by the sensor network, an internet protocol address, or neighbor node information of the sensor node.

More specifically, the gateway transmits a discovery command to a sink node to perform a discovery command in the sensor network, transmits the result data according to the discovery command in the sensor network to the gateway, and transmits the transmitted result data to the node of the gateway. Can be stored in an information table.

In operation 930, the host retransmits the command of device discovery and service discovery to the gateway.

When the host wants to know the information about the node of the sensor network, the gateway may read the information managed in the current node information table or perform a new discovery command from the sensor network to receive the result according to the specification of the operation range. To send device discovery and service discovery commands.

The gateway then updates the node information table in step 940.

As described above, when the operation range is a gateway, when the operation range is a gateway, the gateway receives information on a node of the sensor network received from the sensor network periodically or eventually, and the information on the received node. Update the node information table accordingly.

Alternatively, when the operation range is a sensor network, the gateway requests the sink node of the sensor network for information about the node, collects information of each sensor node from the sensor node at the sink node, and transmits the information to the gateway. Update the node information table.

In this process, the sensor node receiving the message for the sensing data request stores a message frame including the current sensed data in the internet protocol payload and transmits the message frame to the gateway through internet protocol routing. The gateway interprets the message frame included in the Internet protocol payload to find out information such as sending node and service identifier sensing information, finds information mapped in the binding table, finds the Internet protocol address of the host, and senses with this address. Meta data related to the service including data is written in accordance with the message format used by the user processing module and transmitted to the host.

Finally, the host receives a service for node information from the gateway (step 950).

The host receives the service for the node information from the gateway, so that the host can determine whether the node of the network has been changed and the type of sensing data provided by each node, so that the service for the sensing data can be provided accordingly.

10A is a flowchart of a node information table applied at system initialization in a gateway according to the present invention.

First, referring to FIG. 10A, the gateway performs a device discovery command (step 1010) and a service discovery command (step 1011) to initialize and collect information about a sensor node and store it in a node information table (step 1012).

10B is a flowchart of configuring a node information table by system operation after system initialization in a gateway according to the present invention.

Referring to FIG. 10B, when the gateway receives a command (step 1020) and receives a device or service discovery command (step 1021), the gateway executes the command (step 1022) and stores or updates the result in the node information table (step 1022). 1023) and waits for another command to be received again in a command receiving standby state.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical details of the appended claims.

As described above, according to the present invention, a sensor network service can be provided at a remote location by connecting a sensor network and the Internet using a gateway, and an additional procedure for assigning separate Internet protocol information is also provided to a sensor node installed in an area where Internet protocol communication is not possible. It is possible to communicate with the Internet without any information, and it is easy to integrate and manage a wide variety of sensor networks by defining agent and protocol message that can process sensor network, and sensing data about desired sensor node without detailed address information about the sensor node. The service can be provided.

Claims (13)

A sensing data service providing system comprising a sink node of a sensor network, a gateway connected to the sensor network and the Internet, and a host receiving a sensing data service, The sink node, A sensor processing module configured to perform data frame conversion for data transmission between the sensor node of the sensor network and the gateway; The gateway, A database processing module including a node information table storing information of the sensor node included in the sensor network and a binding table storing mapping information to perform information transfer between the host and the sensor node; A gateway processing module for transmitting a command for using the sensing data of the client, a result of performing the command, and the sensing data to the host; And A service processing module for processing message transmission with the sink node and processing of information according to message exchange between the sink node and the host; The host, The sensing data service providing system interworking the Internet with a sensor network including a client processing module requesting the gateway for node information of the sensor node included in the sensor data or the sensor network and receiving a service according to the request. . The method of claim 1, The sensor processing module, System for providing a sensing data service interworking with the Internet and the sensor network, characterized in that to perform the Internet protocol encapsulation or decapsulation for data frame conversion between the sensor node and the gateway. The method of claim 1, The node information table, Sensing data service interworking with the sensor network and the Internet, characterized in that the gateway includes at least one of an identifier assigned to the sensor node, an address used in the sensor network, an Internet protocol address or neighbor node information of the sensor node. Provide system. The method of claim 1, The binding table, Whether the type of service provision for sensing data from the gateway to the host is periodic or event; When the service for the sensing data is periodically provided, the data transmitted from the sink node is stored in the buffer address of the gateway, and when the service for the sensing data is provided eventually, the buffer address of the gateway is stored in the buffer address. And sensing data transmitted to the host after storing the data transmitted from the sink node. The method of claim 4, wherein The sensing data is stored in the internet protocol payload in the gateway processing module of the gateway and transmitted to the host, the sensing data service interworking system interworking with the Internet. A sensing data service providing method comprising a sink node of a sensor network, a gateway connected to the sensor network and the Internet, and a host receiving a sensing data service, Transmitting device discovery and service discovery commands from the gateway to the sink node to collect information of sensor nodes included in the sensor network and store the information in the node information table of the gateway; Storing a service identifier for the host at the gateway when the service identifier of the sensing data to be used at the host is transmitted to the gateway; Determining, at the gateway, whether a service activation message for receiving a service for a sensor network from the host is transmitted, and if a service activation message is transmitted from the host, transmitting the service activation message to a sink node; And And activating the sensor node by transmitting the activation message from the sink node to the sensor node. The method of claim 6, The storing in the node information table of the gateway may include: Transmitting, by the gateway, a discovery command for sensing data of the sink node of the sensor network; And And transmitting the result data according to the search command from the sensor network to the gateway and the host, and storing the transmitted result data in the gateway and the host. How we deliver the service. The method of claim 6, The node information table, Providing a sensing data service interworking with the sensor network and the internet, characterized in that the gateway includes at least one of an identifier assigned to the sensor node, an address used in the sensor network, an internet protocol address, or neighbor node information of the sensor node. Way. A sensing data service providing method comprising a sink node of a sensor network, a gateway connected to the sensor network and the Internet, and a host receiving a sensing data service, Transmitting device discovery and service discovery commands from the gateway to the sink node to collect information of sensor nodes included in the sensor network and store the information in the node information table of the gateway; Storing a service identifier for the host at the gateway when the service identifier of the sensing data to be used at the host is transmitted to the gateway; Transmitting a service request message for a specific service to be provided from the host to the gateway; And And providing, by the gateway, sensing data for a service to the host according to the service request message. The method of claim 9, The input parameter of the service request message is a gateway or sensor network, characterized in that the sensor network and the internet interworking method for providing a sensing data service. The method according to claim 9 or 10, When the host uses the input parameter of the service request message as a gateway, transmitting sensing data information received for the corresponding service identifier from the binding table of the gateway to the host; And When the host uses the input parameter of the service request message as a sensor network, the node information mapped to the corresponding service identifier is extracted from the binding table, and the service request message for sensing data is transmitted to the sensor node through the sink node. Transmitting and collecting the sensing data from the sensor node and receiving the sensing data from the gateway through a sync code to store information about the sensing data as information about the service identifier in a binding table, and transmitting the sensing data to the host. Method for providing a sensing data service interworking with the sensor network, characterized in that it comprises a. A method of providing a sensing data service including a sink node of a sensor network, a gateway connected to the sensor network and the Internet, and a host receiving a sensing data service, Transmitting device discovery and service discovery commands from the gateway to the sink node to collect information of sensor nodes included in the sensor network and store the information in the node information table of the gateway; Storing a service identifier for the host at the gateway when the service identifier of the sensing data to be used at the host is transmitted to the gateway; And And retransmitting device discovery and service discovery commands from the host to the gateway, and transmitting the updated information of the sensor node from the gateway to the host. The method of claim 12, And the input parameter of the command of the device discovery and the service discovery is a gateway or a sensor network.

Images