TWI571074B - System for transmitting message through heterogeneous networks by gateways and method thereof - Google Patents

Description

System and method for transmitting messages using a heterogeneous network through a gateway device

A network architecture adjustment system and method thereof, in particular, a system and method for transmitting messages through a gateway device using a heterogeneous network.

Wireless network refers to any type of radio computer network. It is a network with radio waves as the carrier and physical layer. It can be connected between nodes without cables.

In some current wireless communication networks, there is only one coordination device in a wireless communication network, and there are also one or more routing devices, wherein the coordination device is frequently exchanged with each routing device and each routing device. Path information to maintain the reliability and timeliness of the path.

However, once the number of routing devices increases, the path information exchanged between the coordinating device and the routing device and between any two routing devices will be transmitted in large quantities in the wireless communication network, affecting the bandwidth used by other nodes of the wireless communication network. Even the wireless communication network is close to embarrassing.

In summary, it can be seen that the path information used to maintain path reliability and timeliness in some wireless communication networks has long occupied a large amount of bandwidth in the prior art. Therefore, it is necessary to propose improved technical means to solve the problem. This question.

In view of the problem that the path information of the maintenance network architecture in some wireless communication networks may occupy a large amount of bandwidth in the prior art, the present invention discloses a system and method for transmitting messages through a gateway device using a heterogeneous network, wherein:

The system for transmitting a message by using a heterogeneous network by the gateway device of the present invention comprises at least: a plurality of network nodes, the network node being included in the first wireless network cell or the second wireless network cell, and the network The node comprises a gateway device and a routing device, wherein the routing device is disposed in the geometric figure according to the geometric figure, the gateway device is disposed in the three-dimensional space formed by the geometric figure, and the gateway device and the route in the wireless network cell The device is connected by wireless communication technology and becomes the parent node of the connected routing device. Each gateway device is connected through a different data transmission technology than the wireless communication technology; the target device is used to communicate with the first wireless network through the wireless communication technology. The network node is connected, and transmits the communication message to the destination node in the second wireless network cell through the gateway device in the first wireless network cell and the gateway device in the second wireless network cell.

The method for transmitting a message by using a heterogeneous network by the gateway device of the present invention comprises the steps of: setting a wireless network cell, wherein the wireless network cell includes the first wireless network cell and the second wireless network cell, and the wireless The network cell includes a network node, the network node includes a gateway device and a routing device, the routing device is disposed in the geometric figure according to the geometric figure, and the gateway device is disposed in a three-dimensional space formed by the geometric figure; The technology connects the gateway device and the routing device in the wireless network cell, so that the gateway device becomes the parent node of the routing device; connects the gateway devices through different data transmission technologies than the wireless communication technology; connects the target device through the wireless communication technology and a network node in the first wireless network cell; the target device transmits the communication message to the second wireless network cell through the gateway device in the first wireless network cell and the gateway device in the second wireless network cell Destination node.

The system and method disclosed by the present invention are as above, and the difference from the prior art is that the present invention uses a wireless communication technology to transmit a communication message to a gateway device through a network node, and the gateway device uses a data transmission technology different from the wireless communication technology. Transmitting the communication message to another gateway device in the different wireless network cells, so that the gateway device receiving the communication message can use the wireless communication technology to forward the communication message to another network node, thereby solving the prior art The problem can be achieved by increasing the available bandwidth of the wireless communication network.

The features and embodiments of the present invention will be described in detail below with reference to the drawings and embodiments, which are sufficient to enable those skilled in the art to fully understand the technical means to which the present invention solves the technical problems, and The achievable effects of the present invention.

The invention can provide multiple gateway devices in a wireless communication network, thereby dividing the wireless communication network into multiple wireless network cells through the gateway device, and connecting the gateway devices through the data transmission technology when using wireless When a communication device communicates with a target device directly or indirectly connected to a gateway device to a destination node that is directly or indirectly connected to another gateway device, the communication between the two gateway devices can be transmitted/received through the data transmission technology. The communication message is caused to pass through the different wireless network cells and transmitted by the target device to the destination node. The communication message provided by the present invention includes data or signals, but the invention is not limited thereto.

In addition, the data transmission technology of the present invention includes but is not limited to wired or wireless communication technologies, and the wireless communication technologies provided by the present invention include, but are not limited to, Zigbee, Bluetooth (BlueTooth), WiFi, etc., which are proposed by the present invention. Wired communication technologies include, but are not limited to, Ethernet.

The system of the present invention can be applied to the wireless communication network 100. As shown in the network architecture diagram of FIG. 1, the wireless communication network 100 includes a plurality of network nodes, for example, a gateway device 120, a routing device 130, and An end device 140 or the like can be attached.

The gateway device 120 is coupled to one or more routing devices 130 via wireless communication technology. In some embodiments, the gateway device 120 can become the parent node of the connected routing device 130 after being connected to the routing device 130.

In addition, the gateway devices 120 are interconnected by a data transmission technique different from the wireless communication technology used by the connection routing device 130.

The routing device 130 is coupled to the gateway device 120 via a wireless communication technology. In general, routing device 130 will only connect one gateway device 120 at a time. Additionally, routing device 130 can provide one or more end devices 140 connections through the same wireless communication technology. In some embodiments, routing device 130 may become the parent of the connected end device 140 after the end device 140 is connected.

The end device 140 can be coupled to the routing device 130 via wireless communication technology. In general, the end device 140 will only be connected to one routing device 130 at the same time.

It is worth mentioning that the gateway device 120 can be disposed in a three-dimensional space formed by a geometric figure, and the plurality of routing devices 130 are disposed in the geometric shape according to the shape of the same geometric figure, and include a gateway device 120 and The geometry of the plurality of routing devices 130 is referred to as a "wireless network cell." As shown in the second diagram of the network node layout diagram of the present invention, the geometry of the wireless network cell (200a/b/c/d) is hexagonal, but the invention is not limited thereto. For example, it may be a triangle, a rectangle, or the like.

In addition, the edge of each wireless network cell may be the effective distance of the wireless communication technology used by the included gateway device 120 and the routing device 130. Meanwhile, the gateway device 120 and the routing device included in the wireless network cell The distance between 130 may also be two-thirds of the effective distance of the above wireless communication technology, but the invention is not limited thereto.

The operation of the system of the present invention will be further described below. As shown in FIG. 1, the system of the present invention includes a target device 150 in addition to each network node in the wireless communication network 100 such as the gateway device 120 and the routing device 130.

The gateway device 120 can exchange path information with the connected routing device 130. In addition to exchanging path information with the connected gateway device 120, the routing device 130 can also exchange with other routing devices within the same wireless network cell. The path message, but does not exchange path information with the routing device 130 in the different wireless network cells, thus significantly reducing the traffic generated by the switching path message compared to the prior art.

The gateway device 120 is responsible for determining whether the target device 150 is directly connected to the routing device 130, and is responsible for generating a reconnection message when the target device 150 is not directly connected to the routing device 130, and transmitting the generated reconnection message to the target. Device 150.

In some embodiments, the gateway device 120 can select a routing device 130 based on the location at which the routing device 130 connected to the gateway device 120 is set, and can add the network address of the selected routing device 130 to the location. The resulting reconnection message causes the generated reconnection message to include the network address of the selected routing device 130.

The target device 150 is responsible for connecting to any of the network nodes in the wireless communication network 100 to join the wireless communication network 100 after being connected to the network nodes in the wireless communication network 100. After the target device 150 joins the wireless communication network 100, the target device 150 becomes the new end device. In general, the target device 150 can detect the signals of surrounding network nodes and preferentially select the network node with the strongest signal connection.

The target device 150 is also responsible for selecting the routing device 130 in the same wireless network cell to reconnect after receiving the reconnection message transmitted by the gateway device 120. In some embodiments, the target device 150 may reconnect with the routing device 130 selected by the gateway device 120 according to the network address of the routing device 130 included in the reconnection message, but the present invention does not For example, the target device 150 may also determine whether the detected network node is the routing device 130, and connect to the detected network node when the detected network node is the routing device 130. The device 150 can also arbitrarily select a detected network node connection and repeat the process of receiving the reconnection message and selecting the detected network node connection again until no reconnection message is received.

Next, an operational system and method of the present invention will be described with reference to an embodiment. Referring to FIG. 3A, a flow chart of a method for transmitting a message using a heterogeneous network through a gateway device according to the present invention will be described.

First, a wireless network cell needs to be set (step 310). In this embodiment, assuming that the geometry of the wireless network cell is a hexagon, the administrator may first set the gateway device 120, and the distance of each gateway device 120 is the wireless used by the gateway device 120 to connect the routing device 130. The effective distance of the communication technology (that is, the edge of the gateway device 120 to the edge of the wireless network cell) is twice, and then the administrator can set the routing device by the gateway device 120 toward two-thirds of the edge of the wireless network cell. 130, as shown in Figure 2.

After completing the setting of the wireless network cell (step 310), the gateway device 120 and the routing device 130 in the wireless network cell 200 can be connected through the wireless communication technology, and the gateway device 120 is set as the parent node of the routing device 130 ( Step 320). In the present embodiment, it is assumed that the wireless communication technology connecting the gateway device 120 and the routing device 130 is Zigbee.

Also after completing the setting of the wireless network cell (step 310), the gateway device 120 in each wireless network cell 200 can be connected through a data transmission technology different from the wireless communication technology connecting the gateway device 120 and the routing device 130 ( Step 330). In this embodiment, it is assumed that the gateway devices 120 can be connected through the Ethernet 101. However, the present invention is not limited thereto. For example, the gateway devices 120 can also be connected through the WiFi.

After the gateway device 120 in each wireless network cell is connected to the routing device 130, and the gateway device 120 in each wireless network cell is connected to each other, when the target device 150 wants to join the wireless communication network 100, it can pass through The gateway device 120 is coupled to the network node in the wireless network cell by the wireless communication technology used by the routing device 130 (step 350). In this embodiment, it is assumed that the target device 150 is located in the first wireless network cell 200a, and the target device 150 selects the routing device 130 with the strongest signal to connect.

After the target device 150 joins the wireless communication network 100, it can become the end device in the wireless communication network 100. When the target device 150 needs to transmit a communication message (data or signal) to the other end device 140 in the second wireless network cell 200b. (referred to as the "destination node" in the present invention), the target device 150 can transmit the communication message through the gateway device 120 in the first wireless network cell 200a and the gateway device 120 in the second wireless network cell 200b. The destination node in the second wireless network cell 200b (step 380). In this embodiment, the target device 150 can transmit the communication message to the connected routing device 130 through the Zigbee technology (that is, the wireless communication technology used by the target device 150 and the routing device 130) (located in the first wireless network cell). 200a), the routing device 130 can forward the received communication message to the gateway device 120 in the first wireless network cell 200a through the Zigbee technology, and the gateway device 120 in the first wireless network cell 200a can Transmitting the communication message to the second through the Ethernet 101 (that is, the data transmission technology used by the gateway device 120 in the first wireless network cell 200a and the gateway device 120 in the second wireless network cell 200b) The gateway device 120 in the wireless network cell 200b, the gateway device 120 in the second wireless network cell 200b can transmit the communication message to the routing device 130 connected to the destination node through the wireless communication technology (ie, Zigbee), and receive The routing device 130 to the communication message can transmit the received communication message to the destination node through the Zigbee technology. The gateway device 120 in the first wireless network cell 200a can select to transmit the communication message to the gateway device 120 in the second wireless network cell 200b including the destination node according to the network address of the destination node.

Thus, through the present invention, the wireless communication network 100 can be divided into a plurality of wireless network cells by the gateway device 120, so that the path information is exchanged only in each wireless network cell, and the traffic generated by the exchange path information is reduced.

Further, in the above-described embodiment, as shown in the flow of "FIG. 3B", the target device 150 and the wireless network cell may be connected to each other via the wireless communication technology used by the routing device 130 connected to the gateway device 120. After the network node (step 350), the gateway device 120 in the first wireless network cell 200a where the target device 150 is located can determine whether the target device 150 is directly connected to the routing device 130 (step 372). In the present embodiment, since the target device 150 is directly connected to the routing device 130, the gateway device 120 may not perform subsequent actions, that is, no reconnection message is generated.

If the target device 150 is not directly connected to the routing device 130, for example, to the terminal device 140, the gateway device 120 in the first wireless network cell 200a may generate a reconnection message (step 374) and use The wireless communication technology transmits the generated reconnection message to the target device 150 via the routing device 130 (step 376). In the present embodiment, it is assumed that the gateway device 120 can select a routing device 130 according to the location where the respective routing devices 130 (i.e., the respective routing devices 130 in the same wireless network cell) are connected, and will be The network address of the selected routing device 130 is added to the generated reconnection message.

After the target device 150 receives the reconnection message generated by the gateway device 120, a routing device 130 connection may be reselected in the wireless network cell (the first wireless network cell 200a) (step 378). In the present embodiment, it is assumed that the target device 150 can select to connect to the routing device 130 selected by the gateway device 120 according to the network address of the routing device 130 selected by the gateway device 120 included in the reconnection message.

In summary, it can be seen that the difference between the present invention and the prior art is that after the wireless communication network is divided into multiple wireless network cells by the gateway device, the network node transmits the communication message to the same wireless network by using the wireless communication technology. The gateway device in the cell, the gateway device uses a different data transmission technology than the wireless communication technology to transmit the communication message to another gateway device in the different wireless network cells, so that the gateway device receiving the communication message can use the wireless device. The technical means that the communication technology transfers the communication message to the network node in the same wireless network cell, and the technical means can solve the problem that the path information of the exchange maintenance network architecture in some wireless communication networks existing in the prior art may occupy a large amount of The problem of bandwidth, in turn, achieves the technical effect of increasing the available bandwidth in the wireless communication network.

Furthermore, the method for transmitting messages by using a heterogeneous network through the gateway device of the present invention can be implemented in a combination of hardware, software or a combination of hardware and software, or can be implemented in a centralized manner in a computer system or distributed by different components. Implemented in a decentralized manner with several interconnected computer systems.

While the embodiments of the present invention have been described above, the above description is not intended to limit the scope of the invention. Any modification of the form and details of the practice of the present invention, which is a matter of ordinary skill in the art to which the present invention pertains, is a patent protection of the present invention. range. The scope of the invention is to be determined by the scope of the appended claims.

100‧‧‧Wireless communication network
101‧‧‧Ethnet
120‧‧‧gate device
130‧‧‧Routing device
140‧‧‧End device
150‧‧‧ Target device
200a‧‧‧First wireless network cell
200b‧‧‧Second wireless network cell step 310‧‧‧Setting multiple wireless network cells, the wireless network cell includes the first wireless network cell and the second wireless network cell, and the wireless network cell contains more a network node, the network node includes a gateway device and a routing device, the routing device is disposed in the geometric figure according to the geometric figure, and the gateway device is disposed in the three-dimensional space formed by the geometric figure. Step 320‧‧‧through wireless technology Connect the gateway device and the routing device in the wireless network cell to make the gateway device the parent node of the routing device. Step 330‧‧‧ Connect the gateway devices through different data transmission technologies than the wireless communication technology. The wireless communication technology is connected to the target device and the network node in the first wireless network cell. Step 372‧‧ The gateway device in the first wireless network cell determines whether the target device is directly connected to the routing device. Step 374‧‧‧ first The gateway device in the wireless network generates a reconnection message. Step 376‧‧ The gateway device in the first wireless network transmits a reconnection message to the target device. Step 378‧ ‧ The target device reselects the routing device connection in the first wireless network cell. Step 380 ‧ The target device transmits the communication through the gateway device in the first wireless network cell and the gateway device in the second wireless network cell Message to the destination node in the second wireless network cell

FIG. 1 is a network architecture diagram of the present invention for transmitting messages using a heterogeneous network through a gateway device. Figure 2 is a schematic diagram of the network layout of the present invention for transmitting messages using a heterogeneous network through a gateway device. FIG. 3A is a flow chart of a method for transmitting a message using a heterogeneous network through a gateway device according to the present invention. FIG. 3B is a flow chart showing a detailed method for reconnecting the target device to the routing device according to the present invention.

Step 310‧‧‧Setting a plurality of wireless network cells, the wireless network cell includes a first wireless network cell and a second wireless network cell, the wireless network cell includes a plurality of network nodes, and the network node includes a gate The track device and the routing device, the routing device is disposed in the geometric figure according to the geometric figure, and the gateway device is disposed in the three-dimensional space formed by the geometric figure

Step 320‧‧‧Connect the gateway device and the routing device in the wireless network cell by wireless technology, so that the gateway device becomes the parent node of the routing device

Step 330‧‧‧Connect each gateway device through a different data transmission technology than wireless communication technology

Step 350‧‧‧Connecting the target device with the network node in the first wireless network cell through wireless communication technology

Step 380 ‧ ‧ the target device transmits the communication message to the destination node in the second wireless network cell through the gateway device in the first wireless network cell and the gateway device in the second wireless network cell

Claims (4)

A method for transmitting a message by using a heterogeneous network through a gateway device, the method comprising at least the following steps: setting a plurality of wireless network cells, wherein the wireless network cells include a first wireless network cell and a second wireless network Each of the wireless network cells includes a plurality of network nodes, and the network nodes include a gateway device and at least one routing device, and the routing devices are disposed in the geometric pattern according to a geometric pattern. The gateway device is disposed in a three-dimensional space formed by the geometrical pattern; the gateway device and each of the routing devices in each of the wireless network cells are connected by a wireless communication technology, so that the gateway device becomes a parent node of the routing device; connecting each of the gateway devices by a data transmission technology different from the wireless communication technology; connecting a target device and one of the first wireless network cells through the wireless communication technology; When the gateway device in the first wireless network cell determines that the target device is not directly connected to a routing device, the gateway device in the first wireless network cell is configured according to the first wireless network Selecting a routing device for each location of the routing device, and generating a network address of the selected routing device as a reconnection message; the target device receiving the re-address including the network address Connecting the message and selecting to connect with the routing device using the network address, or the target device determines that one of the detected network nodes is a routing device, and is connected to the detected routing device And the target device transmits a communication message to a destination node in the second wireless network cell through the gateway device in the first wireless network cell and the gateway device in the second wireless network cell. A method for transmitting a message by using a heterogeneous network by a gateway device as described in claim 1, wherein the target device transmits the gateway device in the first wireless network cell and the second wireless network cell The step of the gateway device transmitting the communication message to one of the destination nodes of the second wireless network cell further comprises: the gateway device in the first wireless network cell selecting to forward the communication message according to the network address of the destination node The step to the gateway device in the second wireless network cell. A system for transmitting messages by using a heterogeneous network through a gateway device is applied to a wireless communication network, the system comprising at least: a plurality of nodes, the nodes being included in a first wireless network cell or a second wireless network In the cell, and the nodes comprise a gateway device and at least one routing device, wherein the routing devices are disposed on a geometric pattern according to a geometric figure, and the gateway device is disposed to form a solid with the geometric figure In the space, the gateway device in each of the wireless network cells is connected to each of the routing devices through a wireless communication technology and becomes a parent node of each of the connected routing devices, and each of the gateway devices transmits the wireless device One of the communication technologies is connected by a data transmission technology, and the gateway device in the first wireless network cell determines that the target device is not directly connected to a routing device, according to each route in the first wireless network cell. Setting a location of the device to select one of the routing devices of the first wireless network cell and generating a network address of the selected routing device as a reconnection message; a target device, configured to connect to one of the first wireless network cells through the wireless communication technology, and through the gateway device in the first wireless network cell and the second wireless network cell The gateway device transmits a communication message to a destination node of the second wireless network cell, and the target device receives the reconnection message including the network address, and selects and uses the network The routing device of the address is connected, or the target device determines that one of the network nodes is a routing device, and is connected to the detected routing device. A system for transmitting a message by using a heterogeneous network by a gateway device as described in claim 3, wherein the gateway device in the first wireless network cell is further configured to select a transfer according to a network address of the destination node. The communication message is to a gateway device in the second wireless network cell.