KR100881679B1 - Routing method and guest room control system using the same - Google Patents

Abstract

The present invention provides a routing method for efficiently managing a room using wireless communication and a room control system using the same.

The room control system according to the present invention comprises: a first management system for initializing a wireless network of a cluster tree structure based on the IEEE 802.15.4 standard and managing the network using a control packet; A plurality of second management systems connected in a mesh structure and managing a PAN network configured in each guest room by using the control packet transmitted and received by the first management system; And a plurality of cluster ends for controlling electrical / electronic devices in the PAN network according to control packets transmitted and received from the second management system.

According to this configuration, the present invention moves to the same layer as the destination without broadcasting to the entire network, searches for and transmits a control packet, and if the destination is not found, transmits an AODV routing packet requesting a routing path. By using the routing method, it is possible to reduce the traffic of the wireless network and secure an efficient routing path.

AODV, cabin, routing

Description

ROUTING METHOD AND GUEST ROOM CONTROL SYSTEM USING THE SAME}

1 is a view showing a room control system in an embodiment of the present invention.

2 is a diagram illustrating a first management system according to an embodiment of the present invention.

3 is a view showing a second management system according to an embodiment of the present invention.

4 illustrates a cluster end according to an embodiment of the present invention.

5A to 5B illustrate a control packet and a PANID according to an embodiment of the present invention.

6 is a flowchart illustrating a control packet transmission according to an embodiment of the present invention.

7 is a diagram illustrating a routing method according to an embodiment of the present invention.

8 is a diagram illustrating a routing method according to an embodiment of the present invention.

<Explanation of Signs of Major Parts of Drawings>

100: first management system 102: base station

104: first MCU 106: first wireless communication module

108: first memory unit 110: server

112: first interface unit 200: second management system

204: second MCU 206: second wireless communication module

208: second memory unit 214: input unit

216: display unit 300: cluster end

304: second MCU 306: third wireless communication module

312: second interface unit 314: third interface unit

316: switching unit

The present invention relates to a cabin control system, and more particularly, to a routing method for efficiently managing a cabin using wireless communication and a cabin control system using the same.

In recent years, as data communication technology is highly developed, there is an increasing demand for constructing a more efficient and convenient system by interconnecting a plurality of systems.

In particular, hotels and lodging establishments that operate a large number of rooms are additionally provided with various facilities including various electric / electronic appliances in order to improve service quality.

In these accommodations, the check-in and check-out of each room must be quickly identified, and new room reservations and stays must be smoothly operated. In addition, it is necessary to grasp the real state of the room in real time and check the room facilities when the guest leaves, thereby preventing unnecessary waste of room management costs, such as when the guest leaves without turning off the room equipment.

However, it is difficult to check the usage state of each room or to manage a plurality of electrical / electronic devices collectively using conventional wired communication.

Accordingly, in order to solve the above problems, the present invention provides a routing method for efficiently managing a room using wireless communication, and a room control system using the same.

The room control system according to an embodiment of the present invention for achieving the above technical problem is to initialize the wireless network network of the cluster tree structure based on the IEEE 802.15.4 standard, and to manage the network network using a control packet 1 management system; A plurality of second management systems connected in a mesh structure and managing a PAN network configured in each guest room by using the control packet transmitted and received by the first management system; And a plurality of cluster ends for controlling electrical / electronic devices in the PAN network according to control packets transmitted and received from the second management system.

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

1 is a view showing a room control system in an embodiment of the present invention.

Referring to FIG. 1, a room control system according to an embodiment of the present invention initializes a wireless network network having a cluster tree structure based on an IEEE 802.15.4 standard, and manages the network network using a control packet. A plurality of agents for managing a personal area network (PAN) network configured in each guest room using control packets connected to the first management system 100 and a mesh structure and transmitted and received by the first management system 100. And a plurality of cluster ends 300 for controlling electrical / electronic devices in the PAN network according to control packets transmitted and received from the second management system 200 and the second management system 200.

The first management system 100 initializes a network and provides information about a base station 102 that bidirectionally communicates with the second management system 200, and information about the network configured by the base station 102. It is configured to include a server 110 that can be checked and managed.

The base station 102 includes a first micro controller unit (MCU) 104, a first memory unit 108, a first wireless communication module 106, and a first interface unit 112.

The first memory unit 108 may be configured to store information about a wireless network and routing paths for the plurality of second management systems 200. Here, the first memory unit 108 stores the routing paths received from the plurality of second management systems 200 when the room control system is initialized.

The first MCU 104 is formed to control the plurality of second management systems 200. Here, the first MCU 104 processes the control packets received from the plurality of second management system 200. Then, a new control packet for controlling the plurality of second management systems 200 is generated and supplied.

The first wireless communication module 106 is formed to allow bidirectional communication with the second management system 200. Here, the first wireless communication module 106 bidirectionally communicates the information processed by the first MCU 104 with at least one second management system 200 according to a routing path stored in the first memory unit 108. In this case, the first wireless communication module 106 may be connected to the first MCU 104 to include not only a function for wireless communication but also a PAN network formation, management, and routing function.

In addition, a communication method for connecting between the first MCU 104 and the first wireless communication module 106 may include a serial peripheral interface (SPI), a serial communications interface (SCI), a universal synchronous / asynchronous receiver transmitter (UART), and an I2C. Is formed.

The first interface unit 112 is formed to transmit information about the network processed by the first MCU 104 to the server 110. Here, the first interface unit 112 may provide status information to the server 110 by the base station 102 to the plurality of second management systems 200 and the cluster end 300 in which the administrator configures the network. To form. At this time, the first interface unit 112 is any one of the communication port that can be connected to the PC, such as USB, IEEE 1394, RJ-45 port, RJ-19 port, RJ-xx port and the like to communicate with the server 110 Or in combination.

In addition, the first interface unit 120 is formed to be mounted in a slot of the server 110. In this case, the first interface unit 120 is formed in the form of a board using an interface scheme such as a Peripheral Component Interconnect (PCI), an Industry Standard Architecture (ISA), or the like.

Server 110 is configured to be able to communicate with base station 102. Here, the server 110 is formed so that an administrator can control and manage the information supplied through the first interface unit 120 of the base station 102 using a control program.

3 is a diagram illustrating a second management system according to an exemplary embodiment of the present invention.

Referring to FIG. 3, the second management system includes a second MCU 204, a second memory unit 208, an input unit 214, a display unit 216, and a second wireless communication module 206.

The second memory unit 208 is formed to store a routing path of the neighboring second management system 200 and an address of the cluster end 300 that each second management system 200 constitutes. Here, the second memory unit 204 stores the routing path of the neighboring second management system 200 when the guest room control system is initialized, and configures the PAN network of the guest room configured by each second management system 200. The addresses are stored in the plurality of cluster ends 300.

The second MCU 204 is configured to output control signals for controlling the plurality of cluster ends 300 and to process control packets received from the first management system 100. At this time, the second MCU 204 processes the data transmitted and received by the second wireless communication module 206 and outputs the processed data to the display unit 216. In addition, the second MCU 204 processes the data input from the input unit 214.

The second wireless communication module 206 is formed to allow bi-directional communication with the first wireless communication module 116 of the first control system 100 and the third wireless communication module 306 of the cluster end 300. Here, the second wireless communication module 206 supplies the control packet received from the first control system 100 to the second MCU 204. The control packet processed by the second MCU 204 is supplied to the cluster end 300. In this case, the second wireless communication module 206 may be connected to the second MCU 204 to include a PAN network formation, management, and routing function in addition to a function for wireless communication.

In addition, the communication method for connecting between the second MCU 204 and the second wireless communication module 206 is formed of SPI, SCI, UART, I2C and the like.

The input unit 214 is configured to input a command to the second MCU 204. Here, the input unit 214 is configured to input an address for controlling the cluster end 300 connected to the electrical / electronic devices of the PAN network. In this case, the input unit 214 is formed of a jog dial, a keypad, a touchpad, or the like.

The display unit 216 is formed to display data processed by the second MCU 204. Here, the display unit 216 is configured to allow the user to check the data input by the input unit 214 and the data processed by the second MCU 204. In this case, the display unit 216 may include an electronic paper, a liquid crystal display panel, a field emission display panel, a plasma display panel, and a light emitting display panel. Emitting Display Panel).

4 is a diagram illustrating a cluster end according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the cluster end 300 may include a third MCU 304, a third wireless communication module 306, a second interface unit 312, a third interface unit 314, and a switching unit 316. It is configured to include.

The third wireless communication module 306 is formed to allow bidirectional communication with the second management system 200. Here, the third wireless communication module 306 supplies the control packet received from the second management system 200 to the third MCU 304. In this case, the third wireless communication module 306 may be connected to the third MCU 304 to include not only a function for wireless communication but also a PAN network formation, management, and routing function.

The third MCU 304 is formed to control an electric / electronic device connected to the second interface unit 312. Here, the third MCU 304 processes the control packet supplied from the third wireless communication module 306 and controls the electrical / electronic devices connected to the second interface unit 312. Then, the state of the electric / electronic device connected to the second interface unit 312 is checked and supplied to the second management system 200.

In addition, the communication method for connecting between the third MCU 304 and the third wireless communication module 306 is formed of SPI, SCI, UART, I2C and the like.

The second interface unit 312 is formed so that electrical / electronic devices can be connected. In this case, the second interface unit 312 is formed of an outlet and a connector to which a plug and a signal line of an electric / electronic device can be connected.

The third interface unit 314 is formed to supply or cut off power or a signal to an electrical / electronic device connected to the second interface unit 312. Here, the third interface unit 314 supplies power or a signal to an electrical / electronic device connected to the second interface unit 312. In this case, the third interface unit 314 is formed of a plug and a connector to be connected to a source for supplying power or a signal.

The switching unit 316 is formed to supply or cut off power or a signal between the second and third interface units 312 and 314. Here, the switching unit 316 supplies or cuts off power or a signal to an electrical / electronic device connected to the second interface unit 312 according to a control signal supplied from the third MCU 304.

Therefore, the cabin control system is configured such that the first management system can transmit a control packet to the second management system managing each cabin to monitor and control the status of a plurality of electrical / electronic devices connected to the cluster end. You can manage your room efficiently.

5A to 5B are diagrams illustrating a control packet and a PANID according to an embodiment of the present invention.

Referring to FIG. 5A, the control packet 3000 includes a frame format 1000 according to the IEEE 802.15.4 standard wireless protocol and electrical / electronic devices of a PAN network configured in a cabin by the second management system 200. It is configured to include a user frame format 2000 specified by the user for control.

The frame format 1000 includes a frame control field 1002 for specifying beacon, notification, and MAC command types, a sequence number field 1004 indicating a unique sequence number for the transmitted frame, and a frame receiving the frame. A PANID field 1006 for the second management system of the destination, an address field 1008 for the second management system of the destination receiving the frame, a PANID field 1010 for the second management system of the origin transmitting the frame, An address field 1012 is included in the second management system of the source for transmitting the frame.

The user frame format 2000 includes a type field 2002 of the user frame format, a version field 2004 of the user frame format, an instruction field 2006 for finding routing information or moving a control packet, and for sending an instruction. The PANID field of the second management system to be moved (2008), the address field of the cluster end inside the second management system to be moved (2010), the PANID field of the current second management system (2012), and the current second management system. It includes an address field 2014, a packet sequence field 2016 that increases with the number of transmitted data packets, and a payload field 2018 that stores data to be transmitted.

Here, each of the PANID fields of the frame format 1000 and the user frame format 2000 constituting the control packet 3000, that is, a source PANID, a destination PANID, a next PANID, and a current PANID field constitute a plurality of second rooms constituting a guest room. The management system includes a static address for classifying each floor and a dynamic address for classifying room numbers on each floor.

In addition, the PANID field is formed of 16 bits, as shown in FIG. 5B. At this time, the static address and the dynamic address constituting the PANID field are each formed of 8 bits.

These control packets can be reliably communicated with other systems by applying a user-specified frame format in addition to the frame format.

6 is a flowchart illustrating a control packet transmission according to an embodiment of the present invention.

Referring to FIG. 6, when the first management system initializes the network based on the IEEE 802.15.4 standard, each PANID of the plurality of second management systems is stored in a routing table of the first management system. Subsequently, each of the second management systems stores the PANIDs of neighboring second management systems in a routing table. Subsequently, the second management system assigns each address to the cluster end of the PAN network configured by the second management system and stores the address in the routing table of the second management system to initialize the network. )

The first management system determines whether there is a control packet to send to the second management system, and if so, maintains a reception waiting state. If there is a control packet, the first management system generates a control packet and transmits the control packet to Send a control packet.

Any second management system compares the destination address of the transmitted control packet with its own address. (S2) Then, the second management system processes itself if the address of the control packet and the destination address are the same. If not, any second management system checks whether there is a second management system in the neighboring second management system that is the same as the address of the destination of the control packet (S3). If there is a destination address, the control packet is transmitted to process the command (S4).

If there is no destination address in the neighboring second management system, any second management system that receives the control packet compares the upper 8-bit static address indicating the layer to its PANID with the upper 8-bit static address of the neighboring second management system. To compare whether the same layer (S5).

If the address of the destination is the same layer, any second management system that has received the control packet detects whether the second management system of the destination is neighboring (S6) and transmits the control packet to the second management system of the destination (S8).

If the second management system of the destination is not found in the same layer, an AODV (Ad-Hoc On-demand Distance Vector) routing packet is transmitted to the entire layer to secure the routing path of the second management system of the destination, and then transmit the control packet. (S7)

If the address of the destination is not in the same layer, any second management system that has received the control packet checks whether there is another layer neighboring (S9) and is on the same layer as the second management system of the destination included in the control packet. The control packet is transmitted to the place where the information exists (S10).

At this time, the second management system calculates the upper 8-bit static address indicating the layer in its PANID and the upper 8-bit static address indicated by the PANID in the second management system of the destination, and moves to the upper layer if it is positive, and moves to the lower layer if it is negative. .

The control packet having moved the layer thus determines whether there is the second management system of the destination from step S5 and transmits the control packet. Subsequently, the process after moving the control packet to step S5 is the same as the above-described process, and thus will be omitted.

If there is no other layer in the neighboring second management system, the AODV routing packet is transmitted to the entire network to secure the routing path of the second management system of the destination (S11), and then the control packet is transmitted to the second management system of the destination. (S12)

7 is a diagram illustrating a routing method according to an embodiment of the present invention.

The base station transmits the control packet to the cabin 101 of any second management system to send the control packet to the cabin 403, the second management system of the destination.

Subsequently, the second management system of the room 101 checks the routing paths of the neighboring second management systems 201, 202, and 102 stored in its second memory to determine whether there is a second management system of the destination. Check whether or not.

Then, if there is no destination address, the control packet is transmitted to the layer corresponding to the destination by comparing the layer information to the PANID included in the control packet and the layer information to the PANID of the second management system 101. .

Subsequently, the second management system of the cabin 401, which has received the control packet, transmits the control packet to the second management system of the destination on the same floor.

If the address is not found in the second management system of the destination in the routing table of each second management system in the layer that received the control packet, the second management of the destination is obtained after transmitting the AODV routing packet to the entire network to secure the routing path. Send a control packet to the system.

The second management system then controls the plurality of electrical / electronic devices by sending a command corresponding to the control packet to the corresponding cluster end.

8 is a diagram illustrating a routing method according to an embodiment of the present invention.

Referring to FIG. 8, the control packet generated according to the command transmitted from the server to the base station is transferred to the second management system of the 101 room.

Subsequently, the second management system of the room 101 receiving the control packet compares whether there is a second management system corresponding to the destination in the neighboring second management system.

Subsequently, the second management system of the room 101 compares information on the floor of the PANID and whether the PANID is configured on the same floor as the control packet.

Subsequently, the second management system of Room 101, which has confirmed that there is no information on the second management system configured on the same floor and the upper floor, transmits the AODV control packet to the entire network to secure the routing path of the destination, and then the second management system of the destination. Send a control packet to the management system.

The routing method of such a room control system does not broadcast to the entire network, but moves to the same floor as the destination and searches for the control packet. If the destination is not found, the routing method transmits the AODV routing packet requiring the routing path. By reducing the traffic of the wireless network (Traffic) it is possible to secure an efficient routing path.

In addition, the second management system managing the PAN network of each guest room can efficiently use the memory by not storing the routing path in the entire network.

In addition, the room control system of the present invention can perform reliable communication without being confused with other systems by using a control packet designated by a user in a wireless packet.

On the other hand, the present invention described above is not limited to the above-described embodiment and the accompanying drawings, it is a technology that the various permutations, modifications and changes that can be made within the scope without departing from the spirit of the present invention It will be apparent to those skilled in the art.

The routing method and the room control system using the same according to an embodiment of the present invention as described above do not broadcast to the entire network, but move to the same floor as the destination, search for and transmit control packets, and if the destination is not found, the routing path By using the routing method for transmitting the AODV routing packet requiring the network traffic can reduce the traffic of the wireless network and secure an efficient routing path.

In addition, the second management system managing the PAN network of each guest room can efficiently use the memory by not storing the routing path in the entire network.

In addition, the room control system of the present invention can communicate reliably without using other user systems by using a user frame format designated by a user in the control packet.

Claims (21)

A first management system for initializing a wireless network in a cluster tree structure based on the IEEE 802.15.4 standard and managing the wireless network using a control packet; A plurality of second management systems connected in a mesh structure and managing a PAN network configured in each guest room by using the control packet transmitted and received by the first management system; And A plurality of cluster ends for controlling electrical / electronic devices in the PAN network according to control packets transmitted and received from the second management system, The cluster end may include a first MCU that transmits / receives a message to the second management system to process the control packet; A first wireless communication module for transmitting and receiving the control packet with the second management system; A first interface unit connected to the electric / electronic device; A second interface unit connected to power or signals supplied to the plurality of electrical / electronic devices, and And a switching unit configured to supply or cut off power or a signal between the first interface unit and the second interface unit. The method of claim 1, The first management system, A base station for initializing the network and in bidirectional communication with the plurality of second management systems; And a server for managing the network network managed by the base station by a user. The method of claim 2, The base station, A memory unit for storing routing paths for a plurality of second management systems constituting the wireless network; A second MCU processing a control packet transmitted and received with the at least one second management system and outputting a control signal; A second wireless communication module configured to bidirectionally communicate information processed by the second MCU with at least one second management system according to a routing path stored in the memory unit; and And a third interface unit for transmitting the information on the network network processed by the second MCU to the server. The method of claim 3, wherein The third interface unit Room control system, characterized in that any one of the USB port, IEEE 1394, RJ-45 port, RJ-19 port, RJ-xx port that can be connected to a PC or a combination formed. The method of claim 3, wherein The third interface unit Room control system, characterized in that formed in the form of a board using any one of the PCI, ISA to be inserted into the slot of the server. The method of claim 1, The second management system, A second MCU for processing control packets transmitted and received between the first management system and the plurality of cluster ends; A memory unit for storing a routing path of a neighboring second management system and an address of a cluster end constituting a PAN network in the cabin; A second wireless communication module configured to bidirectionally communicate information processed by the second MCU with the first management system and the cluster end according to a routing path stored in a memory unit; An input unit for selecting each cluster end or inputting a command to the second MCU; And And a display unit for displaying a command input from the input unit or data processed by the second MCU. The method of claim 6, The input unit is a room control system, characterized in that any one of a jog dial, keypad or touch pad. The method of claim 6, And the display unit is any one of electronic paper, a liquid crystal display panel, a field emission display panel, a plasma display panel, and a light emitting display panel. delete The method of claim 1, The first and second interface unit Room control system, characterized in that any one or combination of plugs, outlets and connectors. The method of claim 1, And the first MCU and the first wireless communication module communicate with any one of SPI, SCI, UART, and I2C. The method of claim 1, The control packet, A radio frame format according to the IEEE 802.15.4 standard-based radio protocol; And a user frame format designated by a user to control electric / electronic devices of the PAN network configured in the cabin. The method of claim 12, The radio frame format is, A frame control field for specifying a type of beacon, notification, and MAC command; A sequence number field indicating a unique sequence number for the transmitted frame; A PANID field in a second management system of a destination receiving the frame; An address field in a second management system of a destination receiving the frame; A PANID field in a second management system of a source for transmitting the frame; And an address field in a second management system of a source for transmitting the frame. The method of claim 12, The user frame format is, A type field of the user frame format; A version field of the user frame format; An instruction field for finding routing information or moving the control packet; A PANID field of a second management system to move to send the command; An address field of a cluster end inside the second management system to be moved; A PANID field of the current second management system; An address field at a cluster end currently configured in the second management system; A packet sequence field that increases with the number of data packets transmitted; And And a payload field in which data to be transmitted is stored. The method according to claim 13 or 14, The PANID is, A static address for classifying each floor in the plurality of second management systems constituting a room; And a dynamic address assigned to the plurality of second management systems in the first management system. The method of claim 15, And the PANID is 16 bits. The method of claim 15, And wherein each of the static address and the dynamic address is 8 bits. A first step of initializing a wireless network by the first management system based on IEEE 802.15.4; Sending a control packet from the first management system to any second management system; Comparing a PANID of the control packet received from the first management system with a PANID of the second optional management system; A fourth step of controlling, by the second management system receiving the control packet, a plurality of electrical / electronic devices connected to the cluster end in its own PAN network; The first step is Storing PANIDs of the plurality of second management systems in a routing table of the first management system; Storing PANIDs of neighboring second management systems in a routing table of each second management system; And assigning an address to the cluster end in the PAN network configured by the second management system itself, and storing the assigned address in a routing table of each second management system. Routing method of control system. delete The method of claim 18, The third step, Comparing an address of the control packet with an address of the second management system receiving the control packet; Comparing an address of the control packet with an address of a plurality of second management systems neighboring the second management system receiving the control packet; Comparing the static address of the PANID of the control packet identifying the layer with the PANID of the second management system receiving the control packet; Sending a control packet to any second management system that matches the PANID of the control packet; Transmitting an AODV routing packet when a second management system of the same destination as the PANID of the control packet is not found; And transmitting the control packet to a second management system of the destination. The method of claim 20, Transmitting the AODV routing packet, Broadcasting to a plurality of second management systems constituting the network to obtain a routing path to a second management system at a destination; And transmitting the control packet to a second management system of the destination.

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