WO2007023626A1 - Caméra en réseau, serveur de gestion et système de distribution de vidéo - Google Patents

Caméra en réseau, serveur de gestion et système de distribution de vidéo Download PDF

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Publication number
WO2007023626A1
WO2007023626A1 PCT/JP2006/314257 JP2006314257W WO2007023626A1 WO 2007023626 A1 WO2007023626 A1 WO 2007023626A1 JP 2006314257 W JP2006314257 W JP 2006314257W WO 2007023626 A1 WO2007023626 A1 WO 2007023626A1
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WO
WIPO (PCT)
Prior art keywords
network camera
port number
address
global
router
Prior art date
Application number
PCT/JP2006/314257
Other languages
English (en)
Japanese (ja)
Inventor
Eizo Umeda
Original Assignee
Megachips Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Megachips Corporation filed Critical Megachips Corporation
Priority to JP2006522832A priority Critical patent/JP4576637B2/ja
Publication of WO2007023626A1 publication Critical patent/WO2007023626A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
    • H04N23/661—Transmitting camera control signals through networks, e.g. control via the Internet

Definitions

  • the present invention relates to a technique for distributing video captured by a network camera connected to a router.
  • a network camera is connected to the Internet and used, an image captured by the network camera installed at home or the like can be viewed from a remote location.
  • the network camera has a function to distribute the captured video and audio via the Internet.
  • the network camera captures the image. You can view the video inside. For example, when using a surveillance camera to check whether an abnormal situation has occurred at home by looking at home images captured by a network camera during a long trip, Are various.
  • DNS Domain Name System
  • IP address which is a list of 32bits numbers
  • domain name that is easy for humans to divide and memorize, so that the user can easily change the IP address to the target IP address without being aware of the IP address. Can be accessed.
  • Patent Document 1 discloses a technique for assigning a port number as a technique related to the present invention.
  • Patent Document 1 JP 2004-266320 A Disclosure of the Invention Problems to be Solved by the Invention
  • the global IP address of the network camera is generally not fixed, and at a predetermined timing such as when connecting to the Internet, an ISP (Internet Service Provider) will use the dynamic IP address assigned by the server.
  • ISP Internet Service Provider
  • DDNS Dynamic Domain Name System
  • the subdomain name “.00” is assigned to a personal network camera.
  • a network camera such as an external camera
  • the FQDN Full Qualified Domain Name (hereinafter referred to as “address”)
  • xxx.xxx.co.jp the address input field.
  • the DDNS server power of domain name “00.co.jp” is converted to the global IP address registered in association with the subdomain name “ ⁇ . ⁇ .co.jp”. It is possible to connect to the network camera with the global IP address.
  • the network camera dynamically registers the global IP address associated with the subdomain name to the DDNS server, thereby renewing the global IP address.
  • Domain names can be used instead of IP addresses.
  • the port forwarding function is a function that assigns and transfers access to a specific port number from the Internet side to a network device in the home having a specific private IP address.
  • the network camera can be used as a Web server on the Internet.
  • some network cameras in recent years automatically perform a setting operation related to a port forward function of a router.
  • the router's port forward function is automatically set by the network camera, so connect the network camera to the router. It is only possible to distribute video over the Internet.
  • an object of the present invention is when a plurality of network cameras are connected to a router for use, or when a network device other than a network camera is connected under the router. Another object is to provide a technology that allows video and audio captured by a network camera to be distributed via the Internet simply by connecting the network camera to a router.
  • a first invention that solves the above problem is a video distribution system that distributes captured video via a network, the router connected to the network, and connected to the router, A network camera that transmits the identification information of the router and the global IP address of the router, and a database that associates and manages the identification information, the global IP address and the port number, and the network camera power received the global camera
  • the port number associated with the IP address and the identification information different from the identification information received from the network camera is stored, the port number different from the port number is assigned to the network. Assign to the camera and assign the assigned port number to the network camera.
  • a management server for transmission.
  • the second invention is the video distribution system according to the first invention, wherein the network camera receives the port number from the management server and assigns the port number to itself. It is characterized by setting the port forward function of the router.
  • the third invention is the video distribution system according to the first or second invention, wherein
  • the network camera transmits the identification information, the global IP address, and error information to the management server when the port forward function of the router is not set within a predetermined time, and the management server
  • the network camera power is searched based on the received global IP address, and the port number different from the port number stored in association with the global IP address is determined. Reassigning to the network camera and transmitting the reassigned port number to the network camera.
  • the fourth invention is the video distribution system according to any one of the first to third inventions, and the network camera, when the setting of the port forward function of the router is completed, the management server
  • the management server requests connection to the network camera by the port number transmitted to the network camera in response to a request from the network camera.
  • the fifth invention is a video distribution system according to any one of the first to fourth inventions, and further assigns a subdomain name corresponding to the identification information to the global IP address.
  • DDNS server that manages the network, and when the network camera recognizes that the connection by the port number has been established from the management server, the network camera transmits the identification information and the global IP address to the DDNS server. It is required to assign a subdomain name.
  • the sixth invention is the video distribution system according to any one of the first to fourth inventions, and further manages by assigning a subdomain name to the identification information and the global IP address.
  • the network camera recognizes that the connection by the port number has been established from the management server, it generates a subdomain name corresponding to the identification information, and the identification information, The global IP address and the subdomain name are transmitted to the DDNS server to request assignment of the subdomain name.
  • a seventh invention is the video distribution system according to any one of the first to sixth inventions, wherein the DDNS server assigns the sub domain name in response to a request from the network camera. Is notified to the network camera, and the network When receiving the notification, the work camera notifies the completion of the setting.
  • the eighth invention is a network camera that distributes captured images via a network, and is connected to the network via a router, and includes its own identification information and the router's global information.
  • the router sends the IP address to the management server connected to the network, requests the port number assignment, receives the port number assigned by the management server, and assigns the port number to itself. It is characterized by setting the port forward function.
  • the ninth invention is the network camera according to the eighth invention, wherein if the port forward function of the router is not set within a predetermined time, the global IP address and When the port number changed by the management server is transmitted by sending error information to the management server and the port number changed by the management server is received, the port forward function of the router is assigned so that the port number is assigned to itself. It is characterized by resetting.
  • the tenth invention is the network camera according to the eighth or ninth invention, wherein when the setting of the port forward function of the router is completed, the management server is checked for connection via the router. It is characterized by requiring to do.
  • the eleventh invention is the network camera according to any of the eighth to tenth inventions, and when the management sano recognizes that the connection by the port number has been established, the DDNS server The identification information and the global IP address are transmitted to request assignment of the subdomain name.
  • the twelfth invention is the network camera according to any of the eighth to tenth inventions, and when the management sano recognizes that the connection by the port number has been established, A corresponding subdomain name is generated, and the identification information, the global IP address, and the subdomain name are transmitted to a DDNS server to request assignment of the subdomain name.
  • the thirteenth invention is the network camera according to any of the eighth to twelfth inventions, and when the signal notifying that the assignment of the subdomain name is completed, the setting is completed. It is characterized by notifying.
  • the fourteenth invention comprises a database that manages the identification information and the global IP address in association with the port number, and receives the global IP address when the identification information and the global IP address are received. If the port number associated with the address and the identification information different from the received identification information is stored, the port number different from the port number is determined, and the port number is determined. And transmitting to the sender of the identification information and the global IP address.
  • the fifteenth aspect of the invention is the management server according to the fourteenth aspect of the invention, wherein when data including the identification information, the global IP address and the error information is received, the management server is based on the received global IP address. Then, the database is searched, the port number different from the port number stored in association with the global IP address is reassigned to the transmission source, and the reassigned port number is assigned to the error information. It is characterized by being sent to the sender.
  • the port numbers of the network cameras may overlap. It is automatically assigned so that the user does not have to consider and determine the port number for each network camera!
  • the port forward function of the router is automatically set by the network camera, even when the user uses a plurality of network cameras, It is not necessary to set the router's port forward function for each network camera.
  • any one of the video distribution system according to the third invention, the network camera according to the ninth invention, and the management server according to the fifteenth invention a network device other than the network camera is connected to the router. Even if the port number assigned to the network camera has already been assigned to another network device, the port number assigned to the network camera is automatically changed. There is no need to check the port number used by the device or to determine the port number of the network camera. [0040] According to the video distribution system according to the fourth invention or the network camera according to the tenth invention, it is confirmed whether or not it is possible to distribute video and audio from the network camera by the determined port number. be able to.
  • the user uses the domain name instead of the global IP address. Can be connected to a camera.
  • the user has completed the setting of the port forward function of the router and the setting of the subdomain name by the DDNS server.
  • the DDNS server By connecting to each network camera using a domain name, it is possible to recognize that video and audio can be viewed.
  • the network camera of the eighth invention even when a plurality of network cameras are used, port number assignment and router port forwarding function settings are automatically performed. Users can distribute all network camera power video and audio simply by connecting to the router.
  • FIG. 1 is a diagram showing a configuration of a video distribution system according to an embodiment of the present invention.
  • FIG. 2 is a flowchart showing the operation of the network camera according to one embodiment of the present invention.
  • FIG. 3 is a flowchart showing an operation related to port number determination of the management server according to the embodiment of the present invention.
  • FIG. 4 is a diagram showing the operation of the video distribution system according to one embodiment of the present invention.
  • FIG. 1 is a diagram showing a configuration of a video distribution system according to one embodiment of the present invention.
  • a modem 4 for connecting to the Internet 6 and performing communication using ADSL (Asymmetric Digital Subscriber Line), FTTH (Fiber To The Home), etc. and a plurality of network devices are provided.
  • Network routers 1A and 1B for distributing video and audio, and a management server 7A and a DDNS server 7B connected to the Internet 6.
  • the router 3 is also connected to a network device such as the computer device 2.
  • the network cameras 1A and 1B, the computer device 2, the router 3 and the modem 4 constitute a LAN (Local Area Network) 5.
  • the mobile phone 8 in the figure is shown as an example of a terminal that is connected to the Internet 6 and uses this video distribution system to view video and audio captured by the network camera 1.
  • network cameras 1A and 1B force indicating two network cameras 1A and 1B.
  • One network camera may be used, or three or more network cameras may be used. Absent.
  • network cameras are collectively referred to as network cameras 1.
  • the network camera 1 has a function of distributing captured video and audio as a Web server.
  • the user uses a terminal such as a mobile phone 8 to connect to the network camera 1 via the Internet 6 and uses a web browser or the like for video and audio captured and distributed by the network camera 1. Can be viewed.
  • the network camera 1 communicates with the management server 7A to determine a port number to be used for video distribution, and assigns a subdomain name to the DDNS server 7B. Performs various operations to realize the requested function and the function to perform connection authentication for terminals such as mobile phones 8.
  • the network camera 1 has a UPnP (Universal Plug & Play) function, and can simply execute each of the above functions at a predetermined timing just by connecting to the network. Details of these functions and operations will be described later.
  • UPnP Universal Plug & Play
  • the computer apparatus 2 is an example of a general network apparatus that is connected to the Internet 6 in the same manner as the network camera 1. Since the network camera 1 can be connected to the LAN using a private IP address via the router 3, the computer device 2 can view video and audio captured by the network camera 1, and can also connect to the network camera. It can also be used to make various settings for 1.
  • the router 3 is a device that performs routing for using one global IP address assigned on the Internet 6 by a plurality of network devices 1 and 2 connected to the LAN 5. Have the ability. Specifically, the Dynamic Host Configuration Protocol (DHCP) function that assigns private IP addresses to multiple network devices 1 and 2 connected to LAN 5, and these network devices 1 and 2 communicate using the Internet 6. When performing communication, it has a function to mutually convert the IP address related to the data to be transmitted / received into a private IP address in LAN5 and to a global IP address on Internet6.
  • DHCP Dynamic Host Configuration Protocol
  • the modem 4 is a device necessary for performing data communication via the Internet 6 using a global IP address assigned to the network device power such as the network camera 1 and the computer device 2, and includes ADSL and It has a function to perform data communication by various methods such as FTTH.
  • the mobile phone 8 is connected to the network camera 1 via the Internet 6 and is used for viewing video and audio captured by the network camera 1. At this time, connection authentication may be performed on the mobile phone 8 in order to realize security for connection to the network capability 1.
  • the mobile phone 8 is an example, and a terminal used for viewing video and audio may be another terminal such as a computer device, a PDA (Personal Digital Assistants), or a mobile game terminal. What! /
  • the router 3 also receives a connection request from a network device on the Internet 6 to the network camera 1 that operates as a Web server for the purpose of viewing captured video and audio. It has a port forward function that enables data transmission and reception between the device and network camera 1. Specifically, a specific port is released from the router 3 to the Internet 6 side, and data is transmitted / received through the port.
  • Network camera 1 can operate as a web server.
  • a terminal such as a mobile phone 8 connected to the network camera 1 from the outside via the Internet 6 can view images and sounds captured by the network camera 1 using a Web browser or the like. It becomes possible.
  • port numbers 20 and 21 are to be assigned to the private IP address of network camera 1, FTP (File Transfer) can be used between network camera 1 and a terminal to which external power is also connected via the Internet 6. It is also possible to implement operations such as (Protocol) transfer.
  • the global IP address used by the network camera 1 is assigned when the modem 4 is connected to the Internet 6. However, when the connection is terminated and reconnected, a new global IP address is assigned. It is done. Alternatively, the global IP address assigned every predetermined time may change. In other words, the global IP address assigned to network camera 1 is not fixed but changes dynamically.
  • the management server 7A has a function of managing a port number used by the network camera 1 for video and audio distribution.
  • the internal storage device (not shown) manages information such as network camera identification information, global IP addresses, and port numbers used for video and audio distribution as a database.
  • it In response to a request from the network camera 1, it has a function of searching for data in the database and determining a port number used by the network camera 1 according to the search result. Details of these functions and operations will be described later.
  • the DDNS server 7B has a function of assigning a subdomain name to a global IP address used by the network camera 1. As a result, when connecting to the network camera 1 from the outside, it is possible to use an address including a subdomain name rather than an IP address that is a list of numerical values.
  • the management server 7A and the DDNS server 7B are shown separately.
  • the present invention is not limited to this.
  • One server realizes the operations and functions of the management server 7A and the DDNS server 7B. It may be a mode that operates so as to.
  • FIG. 2 is a flowchart showing the operation of the network camera 1.
  • FIG. 3 is a flowchart showing a method for determining a port number performed by the management server 7A.
  • Figure 4 shows the overall flow of the video distribution system, including the corresponding actions shown in Figures 2 and 3. The operation of the video distribution system with reference to these figures explain.
  • the router 3 is connected to the Internet 6 via the modem 4. Router 3 is assigned a global IP address and can communicate over the Internet 6.
  • a private IP address is assigned to the network camera 1A by the DHCP function of the router 3.
  • the network camera 1A recognizes the global IP address assigned to the router 3, the network camera 1A transmits data including its serial number, global IP address, and requested port number as parameters to the management server 7A (see FIG. 2 steps Sl).
  • the requested port number means the port number for which allocation is requested for use in the distribution of video and audio of the network camera 1A, and the initial value for the manufacturing stage.
  • serial number given at the manufacturing stage
  • the present invention is not limited to this, and any information that is unique to each network camera 1 can be identified.
  • information other than the serial number such as a MAC address, may be used.
  • the management server 7A determines a port number used for distributing video and audio from the network camera 1A.
  • the management server 7A when receiving the data transmitted from the network camera 1A, the management server 7A extracts the serial number and global IP address of the network camera 1A as reception parameters (step Sl in FIG. 3).
  • the management server 7A starts searching for the database stored in the internal storage device based on the extracted parameters (step S12).
  • the database is configured with data power in which the global IP address, serial number, and port number to be used of each network camera 1 are associated.
  • each network camera 1 identified by the serial number is assigned to which group. It belongs to the global IP address, and you can check which port number is used to distribute video / audio.
  • the same port number is duplicated in the network camera 1 having the same global IP address by the method of determining the port number and the method of registering the data in the database, which will be described later. It is managed not to be assigned. In other words, if the port number used by the network camera 1 is determined so that it matches the data in the database, even if multiple network cameras 1 are connected under the router 3 in the LAN 5 at home, Video and audio can be distributed via the Internet 6 from each network camera 1 where port number collisions do not occur.
  • the management server 7A also searches the database power for data having an IP address that matches the global IP address of the network camera 1A (step S13).
  • step S14 If there is data having the corresponding IP address as a result of the search, data matching the serial number of the network camera 1A is further searched from among the data (step S14).
  • step S15 data in which only the network camera 1A matches the serial number is searched from the database (step S15).
  • step S14 When there is data that matches the global IP address, but there is no data that matches the serial number (in the second case: step S14) No), data with the same global IP address does not exist and data with the same serial number does not exist (in the third case: No in step S15), and data with a matching global IP address Does not exist! ⁇ is divided into four cases where the data with the same serial number exists (fourth case: Yes in step S15).
  • data including the global IP address and serial number of network camera 1A is already stored in the database in management server 7A.
  • this corresponds to a case where the network camera 1A has already been registered in the database of the management server 7A, and a port number assignment request has been made.
  • the management Sano 7A acquires the port number associated with the data matching the global IP address and serial number received from the network camera 1A from the database, and the port number (hereinafter referred to as the acquired port number). Is sent to the network camera 1A (step S17).
  • the management server 7A searches for the data with the largest port number assigned among the data having the same IP address (step 16), and sets the maximum value of the searched port numbers to 1. The number with is added to network camera 1 A (step S18).
  • management server 7A registers the global IP address, serial number, and assigned port number of network camera 1A as new data in the database (step S21).
  • the newly added network camera 1A has a port number used by the existing network camera 1. A port number with 1 added to the maximum value is assigned. Because of this, duplicate port numbers may not be assigned!
  • the management server 7A transmits the request port number received from the network camera 1A in step S11 to the network camera 1A as it can be used as it is (step S19).
  • the management server 7A registers the global IP address, serial number, and requested port number of the network camera 1A as new data in the database (step S21).
  • the global IP address, serial number, and port number related to network camera 1A are registered in the database as a new management target in the database.
  • a port number assignment request is received from network camera 1A. If there is, the port number is assigned according to the procedure described above in the first case.
  • the network camera 1A transmits a predetermined request port number set as an initial value to the management server 7A, and the management server 7A transmits this to the network camera 1A.
  • the management server 7A transmits this to the network camera 1A.
  • the predetermined port number that the management server 7A has as an initial value is used. It does not matter if it is transmitted.
  • the management Sano 7A transmits the port number associated with the data with the matching serial number to the network camera 1A (step S20).
  • the management server 7A then updates the database by rewriting the global IP address associated with the serial number of the network camera 1A registered in the database with the global IP address received from the network camera 1A. (Step S 22)
  • the management server 7A shows the cases shown in the first to fourth cases. By supporting, network camera 1A will not be assigned a port number that is duplicated with other network camera 1B.
  • the port number received by the network camera 1A is duplicated with the port number assigned to the other network camera 1. Therefore, the port forward setting can be completed with certainty. Therefore, for example, simply change the port number and repeat the port forward function setting, and complete the port forward function setting in a shorter time than when the port forward setting is completed when the port number does not overlap. be able to.
  • the network camera 1A that has received the port number determined in the above procedure (step S2 in Fig. 2) automatically uses the UPnP function to start setting the port forward function of the router 3. (Step S3).
  • the access to the port number received from the management server 7A is forwarded to the private HP address assigned to the network camera 1A.
  • Set the port forward function For the router 3 using the global IP address, the access to the port number received from the management server 7A is forwarded to the private HP address assigned to the network camera 1A.
  • the network camera 1A can operate on the Internet 6 as a Web server using the assigned port number and global IP address.
  • the port number assigned by the management server 7A to the network camera 1A is already used by another network device such as the computer device 2 connected to the LAN5.
  • a network camera different from the present invention is used, and the port number being used by the network camera is assigned to the network camera 1A. Since the management server 7A manages only the port number of the network camera 1, if another network device such as the computer device 2 is used, these network devices There is a possibility that the port number already assigned to the network device and the port number to be assigned to network camera 1 on the management server 7A overlap.
  • the port forward function cannot be set normally because an attempt is made to use the duplicate port number already set in the network camera 1A power router 3. Therefore, the router 3 does not return a response indicating that the port forward function has been set normally to the network camera 1A, and there is no response or an error has occurred. A response indicating is returned.
  • the network camera 1A tries to set the port forward function for the router 3 according to the port number determined by the management server 7A. If there is no response from the router 3 indicating that the port forward function has been successfully set within the specified time, it is assumed that an error has occurred and the operation returns to step S1 again (step S1). S4 No).
  • the parameter sent from the network camera 1A to the management server 7A indicates that an error has occurred in the router 3 in addition to its own serial number and global IP address. Send error information.
  • the management server 7A that has received this operates differently from the first to fourth cases described above with reference to FIG.
  • the management server 7A when the signal received from the network camera 1A contains error information indicating that an error has occurred in the settings of the router 3, (in step S22) Yes), data having the same global IP address as that of network camera 1A is searched from the database, and data having the maximum value of the port number is further searched (step S23). Then, the port number obtained by adding 1 to the maximum value of the searched port number is transmitted to the network camera 1A (step S24), and the data is rewritten using the port number as the port number of the network camera 1A to update the database. (Step S25). [0120] Then, the network camera 1 A operates again with steps S3 and S4 as described above. That is, the operation force of steps S1 to S4 is repeated until the setting of the port forward function of router 3 is completed normally.
  • the management server 7A that has received the error information searches for data having the same global IP address and the maximum port number, and adds 1 to the port number.
  • a mode of determining a new port number has been shown, the present invention is not limited to this. If it is different from the port number assigned to the data with the same global IP address in the database of Management Server 7A, and if it determines a port number different from the assigned port number when an error occurs, the port number In addition to a mode in which a predetermined numerical value is added to the maximum value, a mode in which a port number is determined by performing a predetermined calculation may be used.
  • the network camera 1A has a port number other than the port number assigned to the network camera 1.
  • Set the port forward function with the port number Therefore, when changing the port number and setting the port forward function repeatedly Compared to, the setting of the port forward function can be completed in a shorter time.
  • the network camera 1 A which has determined the port number and has successfully completed the setting of the port forward function for the router 3, sends a signal requesting the management server 7A to check the external connection. Is transmitted (step S5 in FIG. 2).
  • the management server 7A that has received this refers to the data in the database managed for the requested network camera 1A, specifies the global IP address and port number registered in the data, and specifies the network camera. Attempt to connect to 1A.
  • the video and audio captured by the network camera 1A can be distributed from the outside of the LAN 5 to the terminal that requests connection by specifying the global IP address and port number via the Internet 6. Test for power.
  • the port forward function of the router 3 Assuming that the settings and data in the database in the management server 7A are not in a normal state, the network camera 1A returns to step S1 and operates (No in step S6). Then, the operations of steps S1 to S5 are performed again.
  • the network camera 1A receives the signal from the management server 7A and confirms that all the settings related to the global IP address and port number have been normally completed, the network camera 1A A signal that responds to is sent to the management server 7A (step S7).
  • the management server 7A manages, in addition to the global IP address, serial number, and port number, information indicating that the external connection confirmation test has been performed normally as data in the database.
  • the network camera 1A simply uses the port number determined not to be duplicated and only sets the port forward function of the router 3 for the port number. With this port number, it is possible to confirm whether it is possible to distribute video and audio via the Internet 6.
  • the network camera 1 starts a connection to the DDNS server 7B via the Internet 6 so that a domain name can be assigned to the global IP address.
  • the global IP address and serial number are sent to the DDNS server 7B via the Internet 6 to request assignment of a subdomain name (step S8).
  • the DDNS server 7B When the DDNS server 7B receives the serial number and the global IP address from the network camera 1A, the DDNS server 7B assigns the subdomain name determined according to the serial number to the global IP address. More specifically, for example, when the DDNS server 7B has a domain name! If the number is mcsOOOl, the subdomain name mcsOOOl is assigned, and the address “mcs 0001.00 Oxo.jp J!” Is associated with the global IP address of network camera 1 and managed.
  • the DDNS server 7 associates and manages the serial number, the global IP address, and the subdomain name of the network camera 1A in order to respond to a request to change the subdomain name later.
  • the DDNS server 7B When the setting of the subdomain name is completed on the DDNS server 7B, the DDNS server 7B notifies the network camera 1A of the set subdomain name. And network Camera 1A manages its serial number, private IP address, global IP address, port number, and subdomain name.
  • the subdomain name is determined by the DDNS server 7B.
  • the present invention is not limited to this.
  • the network camera 1A power is determined based on the serial number, etc.
  • the IP address and serial number may be sent to the DDNS server 7B, and the DDNS server 7B may simply manage the settings so that the received subdomain name is assigned to the global IP address.
  • the DDNS server 7B and the management server 7A exist separately and the information related to the subdomain and the like is managed in the DDNS server 7B, the present invention is not limited to this, and the management server 7A and the management server 7A
  • the DDNS server 7B may be realized by the function of the server device, and the information related to the subdomain name may be managed together with the information related to the port number managed by the management server 7A described above. .
  • the network camera 1A performs this on its display device. The user is notified by displaying on the screen or lighting of a lamp such as an LED (not shown).
  • the user can recognize that all the settings have been completed and the connection to the network camera 1A using the subdomain name has become possible.
  • the global IP address assigned to router 3 via modem 4 is as described above. May change dynamically.
  • the network camera 1 has changed its IP address assigned to the power router 3 that sends information such as the Gloren IP address to the management server 7A and the DDNS server 7B every predetermined time.
  • the contents of the global IP address managed internally are changed, and the serial number and the changed global IP address are transmitted to the management server 7A and the DDNS server 7B.
  • DDNS server 7B changes the global IP address corresponding to the corresponding serial number. Also in the management server 7A, the database is updated by rewriting the global IP address of the corresponding serial number registered in the database. The operations of the management server 7A and the DDNS server 7B related to the change of the global IP address are performed independently of the operations of steps S1 to S9 described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Technique de distribution par Internet de sections vidéo et audio capturées par une pluralité de caméras en réseau (1A, 1B) par la simple connexion à un routeur (3) des caméras en réseau. Une caméra en réseau (1A) connectée au routeur (3) demande l’allocation d’un numéro de port à un serveur de gestion (7A) ayant une base de données de numéros de port. Ainsi, un numéro de port différent de celui de la caméra en réseau (1B) est alloué à la caméra en réseau (1A). Une fonction de redirection de port du routeur (3) est définie pour ce numéro de port et un test de confirmation de connexion depuis l’extérieur réalisé. Si une erreur se produit à l’étape du réglage, un nouveau réglage est automatiquement réalisé.
PCT/JP2006/314257 2005-08-24 2006-07-19 Caméra en réseau, serveur de gestion et système de distribution de vidéo WO2007023626A1 (fr)

Priority Applications (1)

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JP2006522832A JP4576637B2 (ja) 2005-08-24 2006-07-19 ネットワークカメラ、管理サーバおよび映像配信システム

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JP2005242640 2005-08-24
JP2005-242640 2005-08-24

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WO2007023626A1 true WO2007023626A1 (fr) 2007-03-01

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JP (1) JP4576637B2 (fr)
WO (1) WO2007023626A1 (fr)

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JP2008301011A (ja) * 2007-05-30 2008-12-11 D & M Holdings Inc ネットワーク通信装置
JP2009290524A (ja) * 2008-05-29 2009-12-10 Nec Infrontia Corp 通信障害回避方法、情報処理装置およびプログラム
JP2011077804A (ja) * 2009-09-30 2011-04-14 Oki Networks Co Ltd 通信装置およびその通信方法
JP2013042558A (ja) * 2012-11-27 2013-02-28 Panasonic Corp Ｉｐ端末装置及びｉｐ端末装置の映像モニタ方法
JP2013059109A (ja) * 2012-11-27 2013-03-28 Panasonic Corp Ｉｐ端末装置及びｉｐ端末装置の映像モニタ方法
JP2014502076A (ja) * 2010-11-09 2014-01-23 トゥエンティーフォーセブン ホールディング アクチボラグ 遠隔映像制作
JP2014158304A (ja) * 2014-05-21 2014-08-28 Panasonic Corp Ｉｐ端末装置及びｉｐ端末装置の映像モニタ方法

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008301011A (ja) * 2007-05-30 2008-12-11 D & M Holdings Inc ネットワーク通信装置
JP2009290524A (ja) * 2008-05-29 2009-12-10 Nec Infrontia Corp 通信障害回避方法、情報処理装置およびプログラム
JP2011077804A (ja) * 2009-09-30 2011-04-14 Oki Networks Co Ltd 通信装置およびその通信方法
JP2014502076A (ja) * 2010-11-09 2014-01-23 トゥエンティーフォーセブン ホールディング アクチボラグ 遠隔映像制作
US9253417B2 (en) 2010-11-09 2016-02-02 Twentyfourseven Holding Ab Remote video production
JP2016171590A (ja) * 2010-11-09 2016-09-23 トゥエンティーフォーセブン ホールディング アクチボラグＴｗｅｎｔｙｆｏｕｒｓｅｖｅｎ Ｈｏｌｄｉｎｇ Ａｂ 遠隔映像制作システム
JP2013042558A (ja) * 2012-11-27 2013-02-28 Panasonic Corp Ｉｐ端末装置及びｉｐ端末装置の映像モニタ方法
JP2013059109A (ja) * 2012-11-27 2013-03-28 Panasonic Corp Ｉｐ端末装置及びｉｐ端末装置の映像モニタ方法
JP2014158304A (ja) * 2014-05-21 2014-08-28 Panasonic Corp Ｉｐ端末装置及びｉｐ端末装置の映像モニタ方法

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JP4576637B2 (ja) 2010-11-10

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