US20030126243A1 - Network device, network connection management device, and method for connecting new network device - Google Patents

Network device, network connection management device, and method for connecting new network device Download PDF

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Publication number
US20030126243A1
US20030126243A1 US10/290,004 US29000402A US2003126243A1 US 20030126243 A1 US20030126243 A1 US 20030126243A1 US 29000402 A US29000402 A US 29000402A US 2003126243 A1 US2003126243 A1 US 2003126243A1
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Prior art keywords
network
request
network device
connection
user
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Abandoned
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US10/290,004
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English (en)
Inventor
Yoshimichi Kudo
Mayuko Tanaka
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Hitachi Ltd
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Hitachi Ltd
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19189020&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20030126243(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Assigned to HITACHI, LTD. reassignment HITACHI, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KUDO, YOSHIMICHI, TANAKA, MAYUKO
Publication of US20030126243A1 publication Critical patent/US20030126243A1/en
Priority to US11/897,715 priority Critical patent/US8005960B2/en
Abandoned legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/30—Decision processes by autonomous network management units using voting and bidding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5038—Address allocation for local use, e.g. in LAN or USB networks, or in a controller area network [CAN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2823—Reporting information sensed by appliance or service execution status of appliance services in a home automation network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/283—Processing of data at an internetworking point of a home automation network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support

Definitions

  • the present invention relates to a network device and a method for connecting a new network device to a network. More particularly, the present invention relates to a network device preferred to be connected easily to a general home network and prevented from connection of any devices unknown to the user.
  • the user can use such access medium as any of a CSMA/CD method LAN employed widely in offices, school campuses, etc., a wireless LAN, and another network that requires no wiring of power lines or telephone lines so as to simplify the installation without any additional construction.
  • IP Internet Protocol
  • the user uses the IP (Internet Protocol) employed widely by the Internet as a protocol common to various types of media to assign an IP address to each device connected to the Internet so as to exchange data as IP packets with each other regardless of the media to which the devices are connected actually.
  • a unique IP address is assigned to the device so as to avoid duplication of the address among devices.
  • the device should be installed easily without such a complicated work as the initial device setup.
  • the DHCP Dynamic Host Configuration Protocol
  • IPv6 The next generation IP protocol IPv6 regulates another method for setting an IP address automatically by combining the upper bits in the address given from a router through the stateless auto configuration process and the lower bits in the address, which are generated by itself.
  • IP addresses can save the time and labor of the user significantly.
  • a wireless LAN or lamp line is used as an access medium, however, unexpected problems might occur; for example, a device unknown to the user might be connected by any person intentionally or by mistake outside the user's house through a wireless port or AC outlet provided on the outer wall of the user's house or from the next room when the user lives in such a housing complex as an apartment house.
  • the user is requested to operate the buttons of both terminals for communications (between master and slave terminals) simultaneously or alternately.
  • the similar operation is employed to connect a new device to a network
  • the user will be requested to perform the operation between the server or router and the terminal to be connected simultaneously or alternately.
  • the new network device and the server/router are not always installed closely to each other in the user's house/room.
  • the network device is installed on the first floor while the server/router is installed on the second floor. In such a case, the user will be forced to move from the first floor to the second floor or from the second floor to the first floor to operate both of the devices to connected the new network device. The work will thus become very troublesome.
  • the confirmation message is displayed just on the server/router screen. Therefore, the user will not be able to recognize the message.
  • each network device of the present invention which is employed for a network system configured by a plurality of network devices, each having terminal functions, as well as at least one network connection management device having server or router functions, is provided with configuration processing means for initializing its address, notification receiving means for receiving a user's notification for user's acknowledgement from the network connection management device when a new network device is to be connected to the network, decision of acknowledgement means for receiving a request for user's acknowledgement from the notification receiving means and sending the request to the displaying means so as to notify the user of the request, then receiving a user command in response to the request through an inputting means to decide contents of a response to be returned to the network connection management device; and response sending means for receiving the decision result from the decision of acknowledgement means and sending the result to the network connection management device.
  • the network connection management device is provided with decision of permission means for deciding whether to permit the connection when receiving an address setting request from the new network device, and displaying means for displaying the address setting request received from the decision of permission means so as to notify the user of the request, inputting means for receiving a user command with respect to the displayed message to transfer the command to the decision of permission means, notification sending means for sending the request received by the decision of permission means to a network device other than the new network device, response receiving means for receiving a response corresponding to the user command with respect to the request sent to the other network device and sending the response to the decision of permission means, registration processing means for registering information related to the new network device permitted to be connected to the network by the decision of permission means, and device information memory means for storing the new network device information through the registration processing means.
  • FIG. 1 is a block diagram of a network system configured by a gateway device and two network devices in the first embodiment of the present invention
  • FIG. 2 is an operation sequence for connecting a new network device to the network shown in FIG. 1;
  • FIG. 3 is another operation sequence for connecting a new network device to the network shown in FIG. 1;
  • FIG. 4 is still another operation sequence for connecting a new network device to the network shown in FIG. 1;
  • FIG. 5 is still another operation sequence for connecting a new network device to the network shown in FIG. 1;
  • FIG. 6 is a block diagram of a network device in the second embodiment of the present invention.
  • FIG. 1 shows a block diagram of a network system in the embodiment of the present invention.
  • the network system is configured by a gateway device 100 and two network devices 200 a and 200 b.
  • the gateway device 100 functions as a network connection management device in this case.
  • the gateway device 100 includes a communication interface 1 for connecting the system to a wireless LAN, a router processing block 2 for controlling data transfer between the wireless LAN and an external network, and an external communication interface 3 for connecting the system to an external wide-area network.
  • the gateway device 100 that functions as an interface between an internal network such as a home network and the external network.
  • the decision of permission block 4 receives a network connection request from a new network device to be connected through the communication interface 1 and displays the connection request message of the new device on the displaying block 7 to notify the user of the request.
  • the decision of permission block 4 reads the address information of network devices already connected to the network from a device information memory block 6 through a registration processing block 5 and notifies the network devices of the request for user's acknowledgement through a notification sending block 9 .
  • a response receiving block 10 receives responses from the network devices through the communication interface 1 with respect to the request for user's acknowledgement, then sends the responses to the decision of permission block 4 .
  • the decision of permission block 4 determines whether to permit the connection of the new network device according to the result received from the response receiving block 10 or instruction issued to the connection request inputted to the gateway device 100 directly by the user through the inputting block 8 .
  • the decision of permission block 4 sends a permission for connection and other necessary information to the new network device through the communication interface 1 .
  • the decision of permission block 4 also stores the information related to the new network device in the device information memory block 6 through the registration processing block 5 and instructs a router processing block to permit accesses of the new network device from/to external devices.
  • a network device is disconnected from a network as follows.
  • the decision of permission block 4 receives a disconnect request from the network device to be disconnected, the system instructs the registration processing block 5 to delete the network device information from the device information memory block 6 .
  • the decision of permission block 4 keeps to communicate with the network device periodically to confirm that the device is connected to the network.
  • the decision of permission block 4 regards that the device is disconnected from the network and add the information that marks this device is deleted to the device information memory block 6 through the registration processing block 5 .
  • the actual deletion of the device information from the device information memory block 6 may be delayed for a certain time so that the deletion is distinguished from temporary disconnection of the device from the network.
  • the displaying block 7 may be composed of LEDs or a liquid crystal panel to display connection request messages; it may be any means if the user can recognize the displayed messages.
  • the inputting block 8 may have dedicated buttons used for inputting the “permit” and “not permit” information. Those buttons may also be displayed on a liquid crystal panel to select various functions together with the cursor keys and the enter key.
  • the configurations of the network devices 200 a and 200 b will be described.
  • reference symbols 21 a and 21 b to 20 a to 29 b denote the same items.
  • the application processing block 30 a / 30 b realizes functions specific to the corresponding network device 200 a / 200 b.
  • the network devices 200 a and 200 b including those application processing blocks 30 a and 30 b may be similar or not similar in function; the present invention is not affected by none of the similarity/non-similarity.
  • the configuration of the network device 200 a will be described in detail.
  • the network device 200 a connected to a network (a wireless LAN in this case) through the communication interface 21 a can send/receive data to/from the gateway 100 .
  • the configuration processing block 22 a requests the request sending block 23 a for information for requesting its connection to the network automatically or according to a user information issued through an operator panel (not shown).
  • the request sending block 23 a then sends the request to the object through the communication interface 21 a.
  • the permission receiving block 24 a receives the response to the connection request through the gateway device 100 and transfers the response to the configuration processing block 22 a.
  • the configuration processing block 22 a sets such necessary information as the address of the network device 200 a according to the information received from the gateway device 100 , thereby the application processing block 30 a is enabled to communicate with network devices already connected to the internal/external network devices to execute predetermined functions.
  • the connection request denotes “not permit”
  • the configuration processing block cancels the connection attempt. The user is thus requested to attempt another method such as manual connection to the network as needed.
  • the notification receiving block 25 a receives the request and transfers it to the decision of acknowledgement block 26 a, thereby the different new network device connection request message is displayed on the displaying block 27 a to prompt the user to confirm the requested content.
  • the user thus inputs the acknowledgement through the inputting block 28 a and the decision of acknowledgement block 26 a determines the content and sends a “permit” or “not permit” acknowledgement to the gateway device 100 through the response processing block 29 a according to the input of the user.
  • the displaying block 27 a and the inputting block 28 a may include LEDs and push buttons just like the displaying block 7 and the inputting block 8 of the gateway device 100 .
  • the displaying block 27 a may also combine a TV monitor screen display operation and a response through an infrared ray remote control device to notify the user of the message.
  • FIG. 2 shows an operation sequence performed by the gateway device 100 and the network devices 200 a and 200 b to connect the new network device 200 a to the network.
  • the network device 200 a when it is connected to the network, sends information for denoting its connection to the network to the router with use of the multi-casting function, then requests the router for information required to set its address and waits for the response from the router.
  • the gateway device 100 when receiving an address setting request from the network device 200 a, displays the information for denoting the new connection request from the network device 100 a on the displaying block 8 and sends a message for requesting the user's acknowledgement to the network device 200 b. Receiving the message, the network device 200 b displays the notification message on the displaying block 27 b and waits for information to be inputted by the user through the inputting block 28 b.
  • the network device 200 b assumes the input of the user as the expected response and sends the response to the gateway device 100 .
  • the gateway device 100 determines the content. When the content denotes “permit”, the gateway device 100 sends the necessary information to the network device 200 a and cancels the display on the displaying block 7 . If the connection acknowledgement request is sent to any network device other than the network device 200 b with use of the multi-casting function, the gateway device 100 notifies the devices that the connection is already confirmed at this time. The network device 200 a thus sets necessary information such as its address according to the information received from the gateway device 100 . After this, the network device 200 a is enabled to send/receive data through the network. When the response from the network device 200 b denotes “not permit”, the gateway device 100 sends a “not permit” message to the network device 200 a and cancels the display on the displaying block 7 .
  • FIG. 3 shows another case in which a new network device 200 a is to be connected to the network while the gateway device 100 and the network device 200 b are already connected to the network.
  • the user sends a message for denoting the completion of his/her acknowledgement to the network device 200 b, which then cancels the display on the displaying block.
  • the method for sending the information to the network device 200 a in this case is completely the same as that in FIG. 2.
  • the gateway device 100 refers to the device information memory block 6 to confirm that there is no network device to which the acknowledgement is to be sent.
  • the gateway device 100 thus makes no request for acknowledgement nor notifies any other network device of the completion of the acknowledgement.
  • FIG. 4 shows an operation sequence performed by the gateway device 100 and the network devices 200 a and 200 b to connect a new device 200 a to the network with use of the stateless auto configuration method.
  • the new network device 200 a is to be connected to the network while the gateway device 100 and the network device 200 b are already connected to the network.
  • the network device 200 a requests a router advertisement message as needed and the gateway device 100 sends the router advertisement message to the network with use of the multi-casting method when receiving the router solicitation message or in a certain time.
  • the network device 200 a obtains the upper bits of the network address from the router solicitation message received from the gateway device 100 and combines the bits with the lower bits generated by itself to obtain the new address. The network device 200 a then sends this address notification message to the network with use of the multi-casting function.
  • the gateway 100 receiving the address notification message from the network device 200 a, displays a message denoting that a new network device is to be connected to the network and sends the request for acknowledgement to the network device 200 b.
  • the network device 200 b displays a message denoting that a new device is to be connected on the displaying block 27 b to prompt the user to input necessary information through the inputting block 28 b.
  • the user's input is sent to the gateway 100 as a response.
  • the gateway device 100 sends no information to the network device 200 b and cancels the display on the displaying block 7 .
  • the gateway device 100 notifies the device of the completion of the user's acknowledgement at this time.
  • the gateway device 100 notifies the network device 200 a that the address cannot be used. The network device 200 a, receiving the “not permit” message, thus cancels the use of the generated address.
  • FIG. 5 shows an operation sequence performed by the user through the inputting block 8 at the gateway device 100 side through the stateless auto configuration just like in FIG. 4.
  • the operation sequence in this case is the same as that shown in FIGS. 3 and 4.
  • Each means of the gateway device and the network devices shown in FIG. 1 may be an independent hardware block. On the other hand, the function of each means may be realized by a software program. Which of the above methods should be employed is left to the device designer.
  • FIG. 6 shows a block diagram of a network device in the second embodiment of the present invention.
  • the blocks denoted by reference symbols 21 c to 25 c and 29 c are the same as those of the network device shown in FIG. 1, which are denoted by 21 a to 25 a and 29 a.
  • the decision for acknowledgement block 31 in the network device 300 notifies the user that an application processing block 32 has received a connection request from another network device by displaying the message on the screen of the displaying block 32 .
  • the decision for acknowledgement block 32 then receives a response inputted by the user through the inputting block 34 and the application processing block 32 , then transfers the response to the gateway device.
  • the network device can share the displaying block and the inputting block with the application processing block shown in FIG. 6, thereby the network device can obtain the same effects as those of the network device shown in FIG. 1 without providing dedicated displaying means or inputting means specially.
  • a new network device can be connected to a network with a simple operation.
  • the attempted connection is notified to the user through each network device connected to the network, thereby the unexpected connection can be prevented.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
US10/290,004 2001-12-27 2002-11-06 Network device, network connection management device, and method for connecting new network device Abandoned US20030126243A1 (en)

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US11/897,715 US8005960B2 (en) 2001-12-27 2007-08-30 Network connection management apparatus device, and system for connecting new network device

Applications Claiming Priority (2)

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JP2001395712A JP3744419B2 (ja) 2001-12-27 2001-12-27 ネットワーク装置、ネットワーク接続管理装置およびネットワーク装置の増設方法
JP2001-395712 2001-12-27

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US11/897,715 Expired - Lifetime US8005960B2 (en) 2001-12-27 2007-08-30 Network connection management apparatus device, and system for connecting new network device

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EP (1) EP1324539B1 (ja)
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KR (1) KR100470853B1 (ja)
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JP2003198552A (ja) 2003-07-11
EP1324539B1 (en) 2005-05-18
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CN1251466C (zh) 2006-04-12
US8005960B2 (en) 2011-08-23
US20080005309A1 (en) 2008-01-03
DE60204207D1 (de) 2005-06-23
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EP1324539A1 (en) 2003-07-02
KR20030057298A (ko) 2003-07-04

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