KR100748094B1 - 802.15.4 wpan installation method and apparatus therefor - Google Patents

Abstract

An 802.15.4 WPAN(Wireless Personal Area Network) installation method and a device therefor are provided to easily construct a PAN in consideration of another PAN which is already constructed, thereby increasing efficiency of frequencies and channel stability. Addresses, PAN IDs, and channels to be used by coordinators which newly start operation are set(S100). One suitable coordinator of the constructed coordinators is selected to combine with a device(S200). The coordinator installation process(S100) comprises the following steps of: setting a coordinator to be newly installed is set to a setup mode; selecting a channel having the minimum energy among available channels; setting a PAN ID which existing other coordinators do not use as PAN ID of the coordinator to be newly installed; and setting the coordinator to an operation mode after completion of the installation.

Description

802.15.4 WPAN installation method and apparatus therefor}

1 is a basic structure of 802.15.4 WPAN,

2A through 2E are frame format diagrams used in 802.15.4 WPAN communication;

3 is an overall flowchart of an 802.15.4 WPAN installation method according to the present invention;

4 is a flowchart illustrating a procedure in a PAN coordinator in the 802.15.4 WPAN installation method according to the present invention;

5 is a flowchart illustrating a procedure in a lower device in the 802.15.4 WPAN installation method according to the present invention;

6 is a block diagram of a coordinator constituting an 802.15.4 WPAN according to the present invention, and

7 is a block diagram of a lower device constituting an 802.15.4 WPAN according to the present invention.

The present invention relates to an 802.15.4 WPAN deployment method and apparatus therefor, in particular, 802.15.4 WPAN can be easily constructed while taking into consideration the network already established, and 802.15.4 capable of minimizing user intervention. It relates to a WPAN installation method and an apparatus therefor.

Short-range wireless network technology is becoming more common as demand for wireless wireless devices increases. Among them, IEEE 802.15.4 WPAN is a low-power wireless network method that is recently attracting attention.

IEEE 802.15.4 has been proposed for places requiring low power while having a low data transfer rate. In particular, IEEE 802.15.4 may have a great effect when used in a battery-powered device by constructing a sensor network.

Since the IEEE 802.15.4 is a short-range wireless network, the transmission distance is within several tens of meters, and the transmission rate is 20kb / s to 250kb / s, and is classified according to the frequency band used. In addition, the network configuration topology may be broadly classified into a star topology and a peer-to-peer structure. As shown in FIG. 1, the device 12 is connected to a coordinator 11 as a center, and a single coordinator 11 serves as a master and is connected to a lower device. 12 acts as slave. The peer-to-peer structure is a star structure in which a plurality of coordinators, which are connected to lower devices by performing a master role, are connected to each other.

In order for devices connected to an IEEE 802.15.4 network to communicate with each other, they must have a personal area network (PAN) ID for identifying and identifying a short-range wireless network, and an address assigned to each device within the network. Includes a PAN ID area and an address area. 2A to 2E illustrate the structure of a packet of a physical layer and a frame of a MAC layer used for Zigbee communication. The MAC frame is carried in the Physical Sublayer Service Data Unit (PSDU) area of the PHY with the name of the MAC Protocol Data Unit (MPDU).

FIG. 2A illustrates a format of a PHY frame. Referring to this, the PHY frame includes a synchronization header (SHR), a PHY header (PHR), and a PHY payload (PSDU). The SHR is used to synchronize PHY frames, and in the PHR, the length of a subsequent PHY payload is represented by 7 bits.

The MAC frame format can be classified into four types: beacon frame, beacon frame, data frame, acknowledgment frame, and command frame. FIG. 2B illustrates a format of a beacon frame. Referring to this, the beacon frame includes a frame control field, a sequence number field indicating an order of the current frame, and address fields. And a MAC payload and an FCS field for error correction. The address field of the beacon frame does not include a destination PAN ID and a destination address, but includes only a source PAN ID and a source address. The address field may identify a PAN to which a corresponding frame is to be transmitted or transmitted, and the corresponding devices may be distinguished from each other by different addresses within the same PAN. In this case, the address system may use 16 bits or 64 bits, and which address system is used may be indicated by selecting a value of an addressing mode of a frame control field. The MAC payload in the beacon frame is composed of a superframe specification, a GTS field, a pending address field, and a beacon payload.

Figure 2c shows the format of a data frame in a MAC frame. As shown, a data frame is composed of a frame control field, a sequence number field, an address field, a data payload, and an FCS field. The data frame address field is composed of a destination PAN ID, a destination address, a source PAN ID, and a source address. The data payload has the value requested by the upper layer.

2D shows the structure of an acknowledgment frame format. As shown, the response frame is simply composed of a frame control field, a sequence number field, and an FCS field. The response frame format indicates whether there is more data stored using the pending field of the frame control field.

2E shows a command frame format among MAC frames. The command frame includes an MHR consisting of a frame control field, a sequence number field, and an address field, a MAC payload, and an FCS. The address field in the command frame may include only one or both of a destination PAN ID and a destination address, a source PAN ID, and a source address. The MAC payload consists of a command frame ID indicating the type of command frame and a command payload corresponding to the payload.

 In general, when constructing a PAN network, a user assigns an arbitrary PAN ID and address to intervene to configure and utilize the network. In this case, when a user arbitrarily assigns a PAN ID and address, when a user wants to install a new PAN network in an environment where another PAN network already exists, the user searches for an existing PAN network and finds out. Unlike PAN, it should be constructed by assigning PAN ID or address.

In addition, the PAN network is a local area network, but since the PAN network may overlap with other neighboring PAN networks in close proximity, the PAN network should be constructed in consideration of the influence between other neighboring PAN networks.

When constructing a PAN network, it is necessary to consider the various situations described above, and it is not easy for a user to construct such a situation.

In particular, in the case of a simple home appliance, since the installation cost can be lowered and the practicality can be increased, there is a need for a method of minimizing user intervention and easily constructing the home appliance.

An object of the present invention for solving the above problems can be easily constructed while considering the other PAN network that is already built when the PAN network is established, the establishment of 802.15.4 WPAN network that can minimize user intervention To provide a method and apparatus therefor.

The present invention for achieving the object of the present invention as described above, in the method of deploying 802.15.4 WPAN consisting of a coordinator and at least one device coupled to the coordinator,

If the installation mode is set, the first step of selecting the channel of the minimum energy from the available channels to set the channel to use;

A second step of searching for other coordinators already installed in the set channel and setting an unused PAN ID as its own PAN ID; And

When the channel and the PAN ID to be used are set, a third step of changing the installation mode to an operation mode operating as a coordinator.

In the 802.15.4 WPAN installation method of the present invention, the second step, the coordinator sets its PNA ID (macPANId) to 0xffff, and the beacon request command through the channel set in the first step ( transmitting a beacon request command, receiving a beacon frame transmitted from another coordinator through the channel, collecting a PAN descriptor from the received beacon frame, and using the PAN IDs used in each coordinator. And a step of setting an arbitrary PAN ID except for the checked PAN ID to a PAN ID used by the user.

In addition, as a configuration means for achieving the above object, the present invention provides a method for installing an 802.15.4 network comprising a coordinator and at least one device coupled to the coordinator,

When set to the installation mode, the first to collect the PAN descriptors of the surrounding coordinator through an active or passive scanning method to store all the PAN IDs operating in the vicinity and set one of them as its own PAN step;

A second step of receiving an address from the coordinator of the allocated PAN ID and setting the corresponding address as an address to be used by the coordinator; And

When the PAN ID and address are set, the method includes a third step of converting from the installation mode to an operation mode for performing communication through the 802.15.4 WPAN.

Preferably, in the 802.15.4 WPAN installation method, the first step includes setting a PAN ID (macPANId) to 0xffff and performing active or passive scanning on all available channels in order. Receiving a beacon frame for each channel, checking a PAN descriptor of a coordinator that can be combined from the received beacon frame, selecting one coordinator from the identified coordinator, and using the coordinator's used channel and PAN ID It characterized in that it comprises the step of setting to the channel and the PAN ID of.

In addition, the present invention, communication unit for performing communication with other coordinators and devices in accordance with the 802.15.4 standard to achieve the above object; An input unit including input means for setting an installation mode; A channel energy searcher for searching for a channel having a minimum energy by measuring energy of all communication channels through the communication unit; A channel scan unit for obtaining other coordinator information communicating through a specific channel through the communication unit; A controller configured to control the channel energy search unit and the channel scan unit to set a channel of minimum energy and a PAN ID not used by a neighbor coordinator as a channel and a PAN ID to be used by the input unit when the installation mode is set in the input unit; And a storage unit for storing the PAN ID and the channel information set by the controller.

In addition, the present invention, communication unit for performing communication according to the 802.15.4 standard and the coordinator of 802.15.4 WPAN to achieve the above object; An input unit including an input means for selecting an installation mode; An active or passive channel scan unit which scans all channels through the communication unit to obtain PAN setting information of the coordinator for each channel; When the input unit is set to the installation mode, the active or passive channel scan unit is operated to confirm the PAN setter of the coordinator for each channel, and set the PAN ID of one coordinator among the checked coordinators as its own PAN ID. A controller for requesting an address assignment from the service and setting the received address as its own address; And it provides a 802.15.4 WPAN device including a storage unit for storing the PAN ID and address information set by the control unit.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing in detail the operating principle of the preferred embodiment of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the same reference numerals are used for parts having similar functions and functions throughout the drawings.

Figure 3 shows the overall flow of the 802.15.4 WPAN installation method according to the present invention.

As shown in FIG. 3, the 802.15.4 WPAN installation method according to the present invention includes a coordinator installation process (S100) for setting a channel, a PAN ID, and an address to be used by a newly started coordinator, as described above. Selected one of the appropriate coordinator from the coordinator is divided into a device installation process (S200) to combine the device.

For reference, a channel scan is described in detail in starting and maintaining PANs of IEEE 802.15.4, and the present invention utilizes the contents mentioned in the standard document to establish an 802.15.4 WPAN network.

4 is a flowchart illustrating a detailed flow of the process (S100) in the 802.15.4 WPAN network installation method according to the present invention, the process of setting the channel, PAN ID, address to be used during the initial operation of the coordinator with reference to this Explain.

Referring to FIG. 4, the installation process (S100) of the coordinator may include setting the coordinator to an installation mode (S110), selecting a channel of minimum energy among available channels (S120), and through the selected channel. The method may include setting a PAN ID not used by other existing coordinators as its own PAN ID (S130), and completing the installation and setting the coordinator to an operation mode (S140).

In the 802.15.4 WPAN installation method according to the present invention, the coordinator is installed by dividing it into an installation mode for setting a PAN ID and a channel to use the coordinator mode, and an operation mode for performing a coordinator function with the set PAN ID and channel. After is completed, even if the coordinator is rebooted to prevent the new installation process.

Therefore, the step of setting the coordinator to the installation mode (S110), the mode of the newly installed coordinator is set to the setting mode. Accordingly, the coordinator performs the installation operation described below without operating as a coordinator generally known. In addition, when initially trying to combine several 802.15.4 WPAN devices into one PAN, the 802.15.4 WPAN device to act as a PAN coordinator is first set to the installation mode to configure a PAN different from the PANs already installed nearby. Do it.

The coordinator set to the installation mode as described above finds and selects the minimum energy channel in the surrounding PAN through the minimum energy channel selection step (S120). In this regard, the ED channel scan mentioned in the IEEE 802.15.4 standard allows the measurement of the maximum energy in each channel. Therefore, in the step S120, the ED channel scan is performed on all available channels, the maximum value of energy is confirmed for all channels, and then the channel having the smallest energy is selected among the identified energies and thus its own channel. To use. According to this, by selecting a channel having the lowest utilization rate by another PAN, it is possible to improve frequency efficiency and channel stability.

In step S130 of setting a PAN ID, an active channel scan of the IEEE 802.15.4 standard is used to find an unused PAN ID. The active channel scan method operates by transmitting a beacon request command after a scanning device (i.e., coordinator or FFD) sets its PNA ID (macPANId) to 0xffff and sets it to the selected channel. do. If macPANId is set to 0xffff, all beacon frames received on the channel can be received without filtering. The other PAN coordinators who have received the Beacon request command, if it is a beacon-enabled PAN coordinator, just transmit a beacon frame as usual, and if it is a nonbeacon-enabled PAN coordinator unslotted CSMA-CA In this manner, a single beacon frame is transmitted. The 802.15.4 WPAN device intending to operate as a new coordinator collects a PAN descriptor from a beacon frame received from another coordinator as described above, and obtains a PAN ID already existing around the collected data. In addition, the PAN ID is set to one's own PAN ID except for the PAN ID used in the vicinity.

By setting the channel and the PAN ID to be used as described above, an appropriate channel and the PAN ID can be automatically set in consideration of the influence of the surrounding PAN without user intervention.

When the channel and PAN ID settings are completed as described above, the installation as the coordinator of the 802.15.4 WPAN device is completed, and then, in step S140, by changing the installation mode to the operation mode, the corresponding device is installed with the installed channel and PAN ID. Can be used as a coordinator.

In the state set to the operation mode, even if the device is rebooted or reset, the PAN ID and the channel set in the installation mode are brought into operation without searching for a PAN ID or channel again.

After the installation of the coordinator is completed as described above, one PAN is constructed by combining lower devices with the installed coordinator. In order for a given 802.15.4 WPAN device to communicate with the coordinator, it is necessary to have the same PAN ID as the coordinator. Therefore, it is necessary to obtain a PAN ID and an address from the PAN coordinator. The device installation process (S200) is a process for performing this.

5 is a flowchart illustrating a detailed procedure of the device installation process (S200) of coupling devices to a coordinator in the 802.15.4 WPAN installation method according to the present invention.

The device installation process (S200), the step of setting the mode of the device to the installation mode (S210), the step of collecting information of coordinators existing in the surrounding (S220), and selects a suitable coordinator from the collected coordinators Receiving a PAN ID and an address (S230), and converting to an operation mode communicating with the PAN (S240).

Referring to FIG. 5, the device installation process will be described in more detail. When the device to be coupled to the coordinator is set to the installation mode (S210), the device operates to receive a PAN ID and an address from a nearby coordinator. . That is, the setting mode setting step (S210) of the device is a step of allowing the device to be assigned a PAN ID and address from the coordinator.

The device set to the installation mode collects information of surrounding coordinators (S220). In step S220, an active or passive channel scan method mentioned in the IEEE 802.15.4 standard is used. The active or passive channel scan method allows the device to detect a coordinator that transmits a beacon frame in the vicinity.

More specifically, the device sets its PAN ID (macPANId) to 0xffff to receive all beacon frames before performing an active or passive channel scan.

Active channel scanning is sequentially performed on all channels to receive a beacon frame for each channel, and then a PAN descriptor is obtained from the received beacon frame. The device may know the information of all coordinators in the vicinity through the obtained PAN descriptor.

The device selects one of the coordinators identified as above and selects the connected coordinator and is assigned a PAN ID and an address (S230).

In step S230, an association is attempted with one coordinator among the collected coordinators. The association process is described in detail in Section 7.5.3 of the 802.15.4 standard, and a detailed description thereof will be omitted below. If the association is successful as described above, the device has a PAN ID and address allocated from the coordinator and thus can communicate with the selected coordinator. When the coordinator is adopted, whether or not the coordination is completed and communication is possible, the information for requesting a specific response is transmitted to the selected coordinator, and it is determined according to whether the specific response is performed according to the information. More specifically, the device has an input means (for example, a button) for controlling the device in the installation mode, and the device transmits a signal requesting a specific response to the selected coordinator in turn, so that the coordinator responds to the specific response. Check visually if When a specific reaction occurs in the confirmation process, the user may operate the input means to inform the corresponding device to select a coordinator to communicate with. If all of the surrounding coordinators are combined in turn and then meet the specific reaction requirements, the next coordinator can proceed to find a suitable coordinator.

As such, when the step S230 is completed and a specific coordinator is adopted, the device changes the state to an operation mode for performing communication through the corresponding PAN (S260). The device set to the operation mode may communicate with the coordinator using the set PAN ID and address without performing an installation process even after a reboot or reset.

6 is a block diagram of a coordinator device implemented by the present invention.

Referring to Figure 6, the coordinator of the 802.15.4 WPAN according to the present invention, the communication unit 61 for communicating with other coordinators and devices in accordance with the 802.15.4 standard, and input means for setting the installation mode and operation mode An input unit 62 including a channel energy, a channel energy scan unit 63 that measures energy of a communication channel available through the communication unit 61, and searches for a channel having a minimum energy; and a specific unit through the communication unit 61; A channel scan unit 64 for acquiring other coordinator information communicating through a channel, and when the installation mode is set in the input unit 62, the channel energy search unit 63 and the channel scan unit 64 operate to minimize energy. A control unit 65 for setting a channel of the PAN ID and a PAN ID not used by the peripheral coordinator as the channel and the PAN ID to be used by the coordinator, and a storage unit 66 storing the PAN ID and channel information set by the control unit 65. To It should.

The channel energy searcher 63 measures the maximum energy in all available channels by the ED channel scan method proposed in IEEE 802.15.4, and selects the channel having the smallest energy among them.

In addition, the channel scan unit 64 obtains PAN setters of coordinators communicating through the channel according to the active channel scan scheme proposed in IEEE 802.15.4, and extracts a PAN ID used in the vicinity.

The controller 65 automatically establishes a basis for communicating as a coordinator by setting an appropriate channel and PAN ID by using the channel energy searcher 63 and the channel scanr 64 described above. In this case, when the channel and the PAN ID are set, the control unit 65 automatically changes to an operation mode that normally functions as a coordinator, or changes the operation mode through the input unit 62 after the user confirms the setting completion. You can change the state to the operating mode. As such, by dividing the installation mode and the operation mode, after the channel and the PAN ID are set, unnecessary repetition of the installation process can be prevented when the coordinator is rebooted or reset.

7 is a block diagram of a device in the 802.15.4 WPAN according to the present invention.

Referring to FIG. 7, the device may include a coordinator of an 802.15.4 WPAN and a communication unit 71 that performs communication according to the 802.15.4 standard, and an input unit 72 including input means for selecting an operation mode and an installation mode; The channel scan unit 73 scans all channels through the communication unit 71 to obtain PAN setting information of the coordinator for each channel, and the channel scan unit 73 is set to the installation mode by the input unit 72. The control unit checks the PAN descriptor of the coordinator for each channel, attempts to combine the identified coordinators in turn, and shows a specific response to the coordinator upon success, and sets a coordinator to be connected to the coordinator if the response is found. 74, and a storage unit 75 for storing the PAN ID and address information set by the controller 74.

The channel scan unit 73 checks the PAN setter of the coordinator to communicate in all channels available to the device according to the channel scan method in the IEEE 802.15.4 standard.

When the peripheral coordinator is identified through the channel scan unit 73, the control unit 74 attempts the combining process in turn to the identified coordinators, and transmits a signal for requesting a specific response to the coordinator having successfully combined. The coordinator responding to the transmission signal is set as a coordinator to which the device is to be connected. In this case, the input unit 72 further includes an input means for instructing whether to select a corresponding coordinator or confirm the response when the coordinator responds, and the user visually confirms the coordinator's response. Allows you to select the appropriate coordinator.

 Therefore, the control unit 74 transmits a signal for requesting a specific reaction to the confirmation coordinators in turn while the instruction to continue the reaction confirmation through the input unit 72, and the user confirms the response of the coordinator to the Then, when the coordinator selection instruction comes through the input unit 72, the PAN ID of the coordinator in response to the response request signal is set to its own PAN ID.

In addition, when the PAN ID and address setting is completed, the control unit 74 automatically changes the state from the installation mode to the operation mode, or sets the operation mode from the input unit 72 by a user's operation confirming the completion of the PAN ID and address setting. When an instruction is input, the mode is changed to the operation mode, thereby preventing unnecessary repetition of the installation operation upon rebooting or resetting.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those skilled in the art.

As described above, the present invention allows the coordinator to automatically find and set a channel with low utilization rate and a PAN ID not used in the neighbor PAN when the 802.15.4 WPAN is installed, and when the device is coupled to the coordinator, By finding the coordinator and setting the PAN ID and address, it is possible to increase the user's convenience during installation while increasing the efficiency and frequency stability of the frequency.

In addition, by simplifying the installation of the 802.15.4 WPAN, there is an excellent effect of increasing the practicality and utilization of the 802.15.4 WPAN device.

Claims (17)

In the 802.15.4 WPAN installation method comprising a coordinator and one or more devices coupled to the coordinator, the coordinator is If the installation mode is set, a first step of selecting a channel of minimum energy among available channels and setting it as a channel to be used; Communicating with other coordinators already installed through the established channel to set an unused PAN ID as its own PAN ID; And And a third step of changing the installation mode to an operation mode operating as a coordinator when a channel and a PAN ID to be used are set. The method of claim 1, wherein the first step The method of deploying 802.15.4 WPAN, characterized in that for measuring the maximum value of the energy in all available channels using the ED channel scan, and comparing the measured value to select the channel with the lowest energy. The method of claim 1, wherein the second step Setting the PNA ID (macPANId) to 0xffff by the coordinator; Transmitting a beacon request command through the channel set in the first step; Receiving a beacon frame transmitted from another coordinator through the channel; Identifying a PAN ID used by each coordinator from the received beacon frame; 802.15.4 WPAN installation method comprising the step of setting any PAN ID except the identified PAN ID to the PAN ID used by the own. A method of deploying an 802.15.4 WPAN comprising a coordinator and one or more devices coupled to the coordinator, wherein the device is A first step of collecting information of coordinators operating in the surroundings through an active or passive channel scan method when set to the installation mode; A second step of attempting to combine the collected coordinators in turn, requesting the combined coordinators to show a specific response, and selecting a coordinator that responds to the request; And And a third step of converting from the installation mode to an operation mode that performs communication via the 802.15.4 WPAN when the PAN ID and address are set. The method of claim 4 wherein the first step is Setting its PAN ID (macPANId) to 0xffff, Receiving a beacon frame for each channel by sequentially performing an active or passive channel scan on all available channels; And collecting a PAN coordinator in operation around the PAN descriptor of the coordinator that can be combined from the received beacon frame. The method of claim 4 wherein the second step is Transmitting a signal requesting a specific response to the collected coordinators in turn; Confirming the response of the coordinators receiving the signal, and selecting a coordinator to combine the coordinator indicating the required response as the 802.15.4 WPAN installation method. A communication unit for communicating with other coordinators and devices according to the Zigbee standard; An input unit including input means for setting an installation mode; A channel energy searcher for searching for a channel having a minimum energy by measuring energy of all communication channels through the communication unit; A channel scan unit for obtaining other coordinator information communicating through a specific channel through the communication unit; A controller configured to control the channel energy search unit and the channel scan unit to set a channel of minimum energy and a PAN ID not used by a neighbor coordinator as a channel and a PAN ID to be used by the input unit when the installation mode is set in the input unit; And 802.15.4 WPAN device including a storage unit for storing the PAN ID and channel information set by the control unit. The method of claim 7, wherein The 802.15.4 WPAN device characterized in that the channel energy scan unit measures the maximum energy in all available channels by the ED channel scan method proposed in IEEE 802.15.4, and selects the channel having the smallest energy among them . The method of claim 7, wherein The channel scan unit obtains PAN descriptors of coordinators communicating through the channel according to an active or passive channel scan scheme proposed in IEEE 802.15.4, and extracts a PAN ID used in the vicinity of the 802.15.4 WPAN. Device. The method of claim 7, wherein The control unit releases the set installation mode when the channel and the PAN ID to be used are set, and changes to an operation mode functioning as a coordinator. The method of claim 7, wherein The input unit further includes input means for setting an operation mode functioning as a coordinator, The control unit 802.15.4 WPAN device, characterized in that for changing the installation mode in accordance with the input of the input unit. A communication unit for performing communication with the coordinator of the 802.15.4 WPAN according to the 802.15.4 standard; An input unit including an input means for selecting an installation mode; A channel scan unit configured to scan all channels through the communication unit to obtain a PAN descriptor of a coordinator for each channel; When the input unit is set to the installation mode, the channel scan unit is operated to check the surrounding coordinators, and attempts to join the confirmed coordinator to set the PAN ID of one coordinator among the successful coordinators as its own PAN ID. A controller for requesting address assignment from the coordinator and setting the received address as its own address; And 802.15.4 WPAN device including a storage unit for storing the PAN ID and address information set by the control unit. The method of claim 12, The channel scanning unit 802.15.4 WPAN device, characterized in that for confirming the PAN descriptor of the coordinator that the device communicates in all available channels according to the channel scan method in the IEEE 802.15.4 standard. The method of claim 12, When the peripheral coordinator is identified through the channel scan unit, the controller attempts to combine the identified coordinators, transmits a signal requesting a specific response to successful coordinators, and selects a coordinator to connect to the coordinator in response to the request. 802.15.4 WPAN device, characterized in that. The method of claim 12, The input unit further includes input means for instructing whether to select a corresponding coordinator or to continue the response check when confirming the response of the coordinator, The control unit 802.15.4 WPAN device, characterized in that for selecting the transmission and coordinator of the signal requesting a specific response in accordance with the input of the input unit. The method of claim 12, When the coordinator to be connected is set, the controller releases the set installation mode and changes the operation mode to the 802.15.4 WPAN device. The method of claim 16, The input unit further includes input means for setting an operation mode, The control unit is a 802.15.4 WPAN device, characterized in that for changing the installation mode in accordance with the input of the input unit.

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