KR20090048058A - Zigbee end device and method of joining multi zigbee network - Google Patents

Zigbee end device and method of joining multi zigbee network Download PDF

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Publication number
KR20090048058A
KR20090048058A KR1020070114258A KR20070114258A KR20090048058A KR 20090048058 A KR20090048058 A KR 20090048058A KR 1020070114258 A KR1020070114258 A KR 1020070114258A KR 20070114258 A KR20070114258 A KR 20070114258A KR 20090048058 A KR20090048058 A KR 20090048058A
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South Korea
Prior art keywords
zigbee
pan
network
zigbee network
neighbor table
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KR1020070114258A
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Korean (ko)
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이호준
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엘지이노텍 주식회사
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Priority to KR1020070114258A priority Critical patent/KR20090048058A/en
Publication of KR20090048058A publication Critical patent/KR20090048058A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/005—Multiple registrations, e.g. multihoming

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention relates to a ZigBee termination device and a multi ZigBee network joining method. The present invention relates to a ZigBee network through a switching means of a communication unit by using a PAN ID, determines whether a PAN ID of another ZigBee network is selected, and determines a different PAN ID. When is selected, by multiple joining by the switching operation of the switching means to another Zigbee network corresponding to the selected other PAN ID, it is possible to multi-join to multiple Zigbee networks, and also to transmit and receive data between multiple Zigbee networks joined You may.

Zigbee, PAN, ID, Communication, Multi, Personal Area Network

Description

Zigbee end device and method of joining multi zigbee network

The present invention relates to a ZigBee termination device and a multi ZigBee network joining method.

Generally, ZigBee refers to IEEE802.15.4 Low-rate Wireless Personal Area Network ('LR-WPANs'), which is divided into three bands and is used for each frequency band. Refers to a system that communicates by setting different spreading methods and data rates.

ZigBee aims at small, low power and low cost products, and is currently attracting attention as a technology for near field communication within 10-20m and ubiquitous computing in wireless networking in homes and offices. .

FIG. 1 is a diagram illustrating a general ZigBee Personal Area Network (PAN).

As shown in FIG. 1, the ZigBee PAN 10 is a basic range for configuring and operating a ZigBee, and a ZigBee Coordinator (ZC) 11 is positioned at the top, and a ZigBee Coordinator (ZC). A ZigBee Router (ZR) 12 (13) is connected to the lower part of the (11), and a ZigBee End Device (ZED) (14) is provided below the ZigBee Router (ZR) 12. It has a structure to which 15 is connected.

In addition, the ZigBee termination device (ZED) 14, 15 may be directly connected to the ZigBee coordinator (ZC) 11.

The ZigBee coordinator (ZC) 11 serves as the owner of the ZigBee PAN 10 and functions to relay data in the ZigBee PAN 10 and to manage the ZigBee PAN 10.

The ZigBee routers (ZR) 12 and 13 widen the area of the ZigBee PAN 10 and share the role of the ZigBee coordinator (ZC) 11.

ZigBee terminators (ZEDs) 14 and 15 represent termination devices capable of communicating within the ZigBee PAN 10.

In one ZigBee PAN 10 configured as described above, 255 terminals may be configured as a network, but fewer than 255 terminals constitute one network due to the limitation of the realistic channel capacity.

At this time, all terminals configured in one Zigbee PAN 10 use the same channel and the same PAN identifier (PAN ID).

Therefore, if the number of terminals is larger than 255 or the channel capacity is insufficient, another ZigBee PAN (not shown) must be configured using another channel.

However, since one ZigBee PAN 10 and another ZigBee PAN use different channels and different PAN IDs, communication between them is impossible.

As described above, the number of terminals configured in one Zigbee PAN is limited, and due to the characteristics of the Zigbee PAN itself, there is a problem that communication between multiple Zigbee PANs is impossible at the same time.

The present invention provides a ZigBee terminal device and a multiple ZigBee network join method for multiple joins to a plurality of ZigBee Personal Area Networks (PANs).

The present invention provides a Zigbee communication unit for supporting a protocol for joining at least one Zigbee network, a PAN ID list storage unit for storing PAN IDs of the at least one Zigbee network, and the Zigbee communication unit using the PAN IDs. And a control unit for multiple joining to the Zigbee networks.

In the present invention, the PAN ID corresponds to a neighbor table or a routing path.

Also, in the present invention, the controller detects the at least one ZigBee network that coexists within a predetermined radius, extracts the PAN ID according to the PAN ID list storage unit, and extracts the PAN ID and the neighbor table. Or store the routing path in temporary storage.

Further, in the present invention, the control unit, after joining the ZigBee network through the ZigBee communication unit using the neighbor table or the routing path corresponding to the PAN ID, the PAN ID, and then the other PAN ID Multiple joins to other Zigbee networks.

In addition, in the present invention, the Zigbee communication unit includes a switching means for switching to the neighbor table or the routing path corresponding to the at least one or more PAN ID.

In addition, the present invention is the step of joining to the Zigbee network through the switching means of the communication unit using the PAN ID, determining whether the PAN ID of the other Zigbee network is selected, and when the other PAN ID is selected as a result of the determination Extracting the selected other PAN ID, storing a neighbor table or a routing path corresponding to the other PAN ID in a temporary storage unit, and performing the neighbor table or the routing path. Multiple joining of the switching means with respect to the other Zigbee network.

Detecting at least one ZigBee network coexisting within a predetermined radius of the present invention; extracting the PAN ID corresponding to the at least one detected ZigBee network from the PAN ID list storage unit; Storing the corresponding neighbor table or the routing path in temporary storage.

The present invention allows a ZigBee endpoint to multiple join (connect) to multiple ZigBee Personal Area Networks.

In addition, the present invention can transmit and receive data between a plurality of ZigBee network as a ZigBee end device multiple joins a plurality of ZigBee network.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

Example

2 is a diagram illustrating a network configuration for communication between a plurality of Zigbee networks (PANs) according to an exemplary embodiment of the present invention.

As shown in FIG. 2, in order to multi-join between a plurality of ZigBee networks (PANs) 200 (210, 220), the plurality of first ZigBee networks 200 to the first, such as a home network, may be used. Assume a structure in which three ZigBee networks 220 coexist within a predetermined radius.

Each of the first Zigbee network 200 to the third Zigbee network 220 is a basic range for configuring and operating the Zigbee, and the ZigBee Coordinator (ZC) 201, 211, and 221 are located above. A ZigBee Router (ZR) 202a, 202b, 212a, 212b, 222a, and 222b is connected to the lower part of the ZigBee Coordinator (ZC) 201, 211, and 221. (ZR) 202a, 202b, 212a, 212b, 222a, and 222b are located below ZigBee End Device (ZED: ZigBee End Device) (203a) (203b) (213a) (213b) (223a) ( 223b) is connected.

In addition, the ZigBee termination device (ZED) 203a, 203b, 213a, 213b, 223a, and 223b may be directly connected to at least one ZigBee coordinator (ZC) 201 (211) (221).

In detail, the ZigBee coordinator 201, 211, 221 has a function of relaying data within each ZigBee network 200, 210, 220, and at least one first ZigBee network 200 to the other. It functions to relay data between the third ZigBee network 220 and to manage each ZigBee network 200, 210, and 220.

ZigBee routers (ZR) 202a, 202b, 212a, 212b, 222a, and 222b expand the area of each ZigBee network 200, 210, 220, and ZigBee Coordinator (ZC) 201. The role of sharing the role of (211) (221).

ZigBee Terminators (ZEDs) 203a, 203b, 213a, 213b, 223a, and 223b can communicate by joining ZigBee networks 200, 210 and 220, as well as other ZigBee networks (ZED) An end device capable of communicating by multiple joins to 200, 210, and 220 is shown.

If the ZigBee terminating device (ZED) 203a joins the second ZigBee network 210, the ZigBee terminator (ZED) 203a may communicate with the third ZigBee network 220 by multiple joining.

ZigBee Coordinator 201, 211, 221, ZigBee Routers 202a, 202b, 212a, 212b, 222a, 222b, ZigBee Terminators 203a, 203b, 213a, 213b, 223a 223b has a PAN ID and a neighbor table or a routing path corresponding to the PAN ID.

Here, the neighbor table and the routing path may store information on addresses, channels, and PAN IDs of other terminals connected to the terminal, as well as information on their own addresses, channels, and PAN IDs.

3 is a block diagram illustrating a ZigBee termination device that is a final node of a ZigBee network according to an embodiment of the present invention.

As shown in FIG. 3, the Zigbee terminal device 300 includes a PAN ID list storage unit 304, a Zigbee communication unit 306, and a controller 310.

First, the PAN ID list storage unit 304 stores PAN ID lists of ZigBee networks 200, 210, and 220 (see FIG. 2).

Here, the PAN ID is a unique ID of the PAN (Personal Area Network) which is the Zigbee network 200, 210, 220 (see FIG. 2).

In addition, the PAN ID preferably corresponds to a neighbor table or a routing pass.

Meanwhile, a neighbor table or a routing path stores information on an address, a channel, and a PAN ID of other terminals connected to itself, as well as information on its own address, channel, and PAN ID.

An example of a PAN ID list is shown in [Table 1].

Zigbee Network No PAN ID First Zigbee Network 0x000010 Second Zigbee Network 0x000020 3rd Zigbee Network 0x000030 … … … … … …

As shown in Table 1, the ZigBee terminator 300 has a plurality of PAN ID lists in the PAN ID list storage 304, so that at least one ZigBee network 200 and 210 coexist within a predetermined radius. A plurality of ZigBee networks 200, 210, and 220 (see FIG. 2) corresponding to the PAN ID may be joined using the PAN ID of FIG. 2) (see FIG. 2).

Here, the ZigBee terminator 300 is a ZigBee terminator 203a, 203b, 213a, 213b, 223a, 223b of the first ZigBee network to 200 and the third ZigBee network 220 (see FIG. 2). Is preferable.

Meanwhile, the Zigbee communication unit 306 of the Zigbee Terminator 300 uses a 2.4 GHz, 868/915 MHz frequency band in a dual PHY form according to the Zigbee standard of IEEE 802.15.4 to provide a tree at a data transmission rate of 20 to 250 kbps. It performs Zigbee communication with nodes of the structure to manage them.

In addition, the Zigbee communication unit 306 includes a switching means 308, at least one ZigBee network by switching the neighbor table or routing path corresponding to the PAN ID to be joined by the switching means 308 at predetermined time intervals. (200) (210) (220) (see Figure 2) to join multiple communication.

At this time, the Zigbee communication unit 306 repeats the writing / deleting of the neighbor table or routing path corresponding to the PAN ID to be multi-joined to the temporary storage unit (not shown) at predetermined time intervals according to the switching operation of the switching means 308. Multi-join to communicate.

Here, the predetermined time interval can be appropriately set according to the device.

Accordingly, the Zigbee end device 300 serves as a final node of the ZigBee network 200, 210, 220 (see FIG. 2), and not only ZigBee communication between nodes by the ZigBee communication unit 306, but also at least one ZigBee thereof. It supports communication protocols that join networks 200, 210, 220 (see FIG. 2).

Meanwhile, the controller 310 detects at least one ZigBee network 200, 210, 220 (see FIG. 2) that coexist within a predetermined radius, and extracts a corresponding PAN ID from the PAN ID list storage 304. And store the neighbor table or routing path corresponding to the extracted PAN ID in a temporary storage unit, and use the neighbor table and routing path corresponding to the PAN ID through the Zigbee communication unit 306 through the Zigbee network 200 and 210 ( And switching means of the Zigbee communication unit 306 for the neighbor table and routing path corresponding to the other PAN ID extracted in the joined state and the neighbor table and routing path corresponding to the PAN ID. As the 308 switches operation at predetermined time intervals, multiple ZigBee networks 200, 210, and 220 (see Fig. 2) join and communicate with each other.

That is, when the controller 310 detects the ZigBee networks 200, 210, and 220 (see FIG. 2) that coexist within a predetermined radius, the controller 310 extracts and extracts the corresponding PAN ID from the PAN ID list storage 304. After storing the neighbor table and the routing path corresponding to the at least one PAN ID, the temporary table is stored in the temporary storage, and then using the neighbor table and the routing path through the ZigBee communication unit 306, the at least one ZigBee network 200 and 210 ( Multiple joins 220 (see FIG. 2) to communicate.

In addition, the controller 310 detects the ZigBee networks 200, 210, and 220 (see FIG. 2) that coexist within a predetermined radius, and extracts the corresponding PAN IDs from the PAN ID list storage unit 304. It may be provided.

4 is a flowchart illustrating a multi-ZigBee network joining method using a ZigBee termination device according to the present invention.

As shown in FIG. 4, the Zigbee end devices 203a, 203b, 213a, 213b, 223a, and 223b that act as end nodes within the Zigbee network 200, 210, and 220. Detects the first ZigBee network 200 to the third ZigBee network 220 that coexist within a predetermined radius (S400), the ZigBee terminators 203a, 203b, 213a, 213b, 223a, and 223b. PAN IDs corresponding to the co-existing Zigbee network 200, 210, 220 is extracted from the PAN ID list storage unit 304.

Here, it is preferable that the Zigbee terminal device 203a, 203b, 213a, 213b, 223a, 223b is the Zigbee terminal device 300 of FIG. 3 described above, and for convenience of description of the present invention, Zigbee The Zigbee termination device 203a is described as an example among the termination devices 203a, 203b, 213a, 213b, 223a, and 223b.

The control unit 310 of the ZigBee terminator 203a detects PAN IDs corresponding to the first ZigBee network 200 to the third ZigBee network 220 (see FIG. 2) that coexist within a predetermined radius. An algorithm for extracting from the ID list storage 304 may be provided.

In addition, the PAN ID list storage unit 304 may store PAN IDs of at least one ZigBee network 200, 210, and 220 as shown in Table 1 above.

Here, the PAN ID may correspond to a neighbor table or a routing pass.

Meanwhile, a neighbor table or a routing path stores information on an address, a channel, and a PAN ID of other terminals connected to itself, as well as information on its own address, channel, and PAN ID.

The control unit 310 of the Zigbee end device 203a extracts PAN IDs corresponding to the at least one first ZigBee network 200 to the third ZigBee networks 220 detected by the PAN ID list storage 304. After storing the neighbor table or routing path corresponding to the extracted PAN IDs in the temporary storage unit, the at least one first ZigBee network 200 to the third ZigBee network 200 to coexist within a predetermined radius by the neighbor table or routing path ( 220 may be selectively multi-joined and thus communicate between at least one first ZigBee network 200 to third ZigBee networks 220 that are multi-joined.

Subsequently, the Zigbee end device 203a stores the neighbor table or routing path corresponding to the extracted PAN ID, for example, the PAN ID of 0x000020, in the temporary storage unit, and then uses the neighbor table or routing path to store the neighbor table or routing path. The two ZigBee network 210 is joined to communicate (S401).

Here, the ZigBee terminator 203a may join the third ZigBee network 220 to communicate when the PAN ID (0x000030) is selected first.

Next, the ZigBee terminator 203a determines whether a PAN ID of another third ZigBee network 220 is selected in the state of joining and communicating with the second ZigBee network 210 (S402).

If a PAN ID of another third Zigbee network 220 is selected, for example, a PAN ID of 0x000030, the neighbor table or routing path corresponding to the PAN ID is stored in a temporary storage unit, and then the neighbor table or routing path is used. By multi-joining to the third ZigBee network 220 corresponding to the PAN ID (S403).

At this time, the switching means 308 of the Zigbee communication unit 306 in the ZigBee terminator 203a repeats writing / deleting NAVER table or routing paths corresponding to the PAN ID and the other PAN ID stored in the temporary storage at predetermined time intervals. In accordance with the switching operation, it is preferable to join and communicate with the multiple ZigBee networks 210 and 220.

Thereafter, the Zigbee end device 203a may communicate by multiple joining to another network using a PAN ID of another Zigbee network.

Therefore, according to the ZigBee network multi-join method using the ZigBee termination device of the present invention, by detecting the PAN ID for a plurality of ZigBee networks that coexist within a predetermined radius and multi-join the plurality of ZigBee networks using the PAN IDs can do.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

1 is a block diagram illustrating a general ZigBee Personal Area Network (PAN).

2 is a network diagram for communication between a plurality of ZigBee networks (PAN) according to an embodiment of the present invention.

3 is a block diagram illustrating a ZigBee termination device that is the last node of a ZigBee network according to an embodiment of the present invention.

4 is a flowchart illustrating a multi-ZigBee network joining method using a ZigBee termination device according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

300: Zigbee terminal 304: PAN ID list storage unit

306: Zigbee communication unit 308: switching means

310: control unit

Claims (7)

A Zigbee communication unit supporting a protocol for joining at least one Zigbee network; A PAN ID list storage unit for storing PAN IDs of the at least one ZigBee network; And a control unit configured to multi-join the Zigbee networks through the Zigbee communication unit by using the PAN IDs. The method of claim 1, The PAN ID is ZigBee termination device corresponding to a neighbor table or a routing path. The method according to claim 1 or 2, The control unit, The PAN ID is extracted from the PAN ID list storage unit by detecting the at least one ZigBee network that coexists within a predetermined radius, and the PAN ID, neighbor table or routing path is stored in the temporary storage unit. ZigBee Terminator to store. The method according to claim 1 or 2, The control unit, Joining to the Zigbee network through the Zigbee communication unit using the PAN ID, the neighbor table corresponding to the PAN ID, or a routing pass, and then multi-joining to another Zigbee network using the other PAN ID Zigbee Terminator. The method according to claim 1 or 2, The Zigbee communication unit, And switching means for switching on the neighbor table or the routing path corresponding to the at least one PAN ID. Joining the Zigbee network through a switching means of a communication unit by using a PAN ID; Determining whether a PAN ID of another Zigbee network is selected; Extracting the selected other PAN ID when the other PAN ID is selected as a result of the determination; Storing a neighbor table or routing path corresponding to the other PAN ID in a temporary storage unit; Multi-joining the other Zigbee network by switching the switching means on the neighbor table or the routing path. The method of claim 6, Detecting at least one ZigBee network coexisting within a predetermined radius; Extracting, from the PAN ID list storage unit, the PAN ID corresponding to the detected at least one Zigbee network; And storing the neighbor table or the routing path corresponding to the PAN ID in a temporary storage unit.
KR1020070114258A 2007-11-09 2007-11-09 Zigbee end device and method of joining multi zigbee network KR20090048058A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103592863A (en) * 2013-11-15 2014-02-19 宁波智轩物联网科技有限公司 Reverse binding device based on key switches and implementation method thereof
CN105960027A (en) * 2016-05-05 2016-09-21 四川九洲电器集团有限责任公司 ZigBee network networking method and ZigBee coordinator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103592863A (en) * 2013-11-15 2014-02-19 宁波智轩物联网科技有限公司 Reverse binding device based on key switches and implementation method thereof
CN105960027A (en) * 2016-05-05 2016-09-21 四川九洲电器集团有限责任公司 ZigBee network networking method and ZigBee coordinator

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