JP2005301779A - Image server, program, and network system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image server, which can easily list display a plurality of images to be displayed on a portal screen and also easily configure displaying of a single image. <P>SOLUTION: If accessed from a computer apparatus 5 through a LAN 1, image servers 4a, 4b and 4c transmit portal image display information and allows the computer apparatus 5 to display images, which are photographed by one or more cameras provided in the image servers 4a, 4b and 4c connected on the LAN 1, through the LAN 1. If network information to acquire images is registered in automatic setting, a controller broadcasts a network information acquisition request, and receives its network information acquisition response from other image servers on the LAN 1 to register network information in a display image server table. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an image server capable of displaying on the portal screen an image captured by the own camera or the camera of the own camera and another image server in the local area network, a program therefor, and a network comprising these image server and terminal About the system.

With the recent development of network technology, it has become possible to browse images taken by an image server such as a network camera from a remote client terminal via a network such as the Internet. However, when browsing images from a plurality of image servers from a client terminal, it is necessary to access each image server, which is time consuming and cumbersome and inconvenient. Therefore, when accessing a plurality of image servers in this way, it is advantageous if image information can be obtained from the network by displaying a plurality of images in a list and accessing them using the list. For example, a system that displays a list of a plurality of images as thumbnail images, although not communication using an image server, has been proposed (see Patent Document 1). Similarly, an image communication method for selecting a desired image while displaying a plurality of images has been proposed (see Patent Document 2). In this case, when the client transmits a request while displaying the images held by the server either or in order, the server transmits the displayed image to the client.
JP 2002-82957 A Japanese Patent Laid-Open No. 2002-351717

  The systems described above (Patent Documents 1 and 2) display images in a list and display detailed images. However, the techniques of (Patent Documents 1 and 2) display a list of images held in advance by the server, and do not display a list of images that are updated one after another and transmitted by the image server.

  Also, as a method of displaying a list of images transmitted by the image server, link information to other image servers is added to screen display information (information described in a markup language such as HTML) such as a web page transmitted to the client. Although a method of including the images can be considered, there are problems as described below, such as troublesome registration work, when displaying a list of images from a plurality of image servers. This will be specifically described below with reference to FIGS. FIG. 7 is a configuration diagram of a network system including a conventional image server, and FIG. 8 is a sequence chart for conventional list display settings and portal screen browsing.

  7 and 8, the image servers 60a, 60b, and 60c are automatically assigned with a local IP address and an external port number by the DHCP function and UPnP function of the router. The IP addresses, port numbers, MAC addresses, and host names of the image servers 60b and 60c are managed as representative image servers so that they can be accessed.

As shown in the portal screen browsing sequence in FIG. 8B, when the computer device 80 accesses the representative image server 60a to see a list of images of each image server on the portal page (hereinafter referred to as portal screen), the image server 60a In the HTML, for example, <img src = http: // 1.1.1.1:8001/image/image.jpg> is described to acquire images captured by the own camera, the image server 60b, and the camera of the image server 60c. Send the portal screen display information. Since the communication means (functional means executed by the browsing application program) of the computer device 80 acquires image data from the URLs of the image servers 60a, 60b, 60c in accordance with the above description, the image servers 60a, 60b. , 60c, request image transmission. Each image server 60a, 60b, 60c transmits an image “image.jpg” in response to this request, and each image is displayed on the displayed portal screen. The same applies when accessing from the client PC 50 via the router 90 and the Internet 40.

  As can be seen from the above, in order to display a list of images from the image server, an IP address such as “1.1.1.1”, a port number such as “8001”, or DNS is used as a URL (Uniform Resource Locator). When the (Dynamic name system) function is available, it is necessary to enter the host name and port number.

  Therefore, conventionally, a troublesome registration work has been performed as shown in FIG. First, a screen setting request for setting the image servers 60a, 60b, and 60c to be displayed as a list is transmitted from the computer device 80 to the image server 60a. The image server 60a transmits setting screen display information. In the computer device 80, the user inputs an IP address, a port number, and a host name to each of the image servers 60b and 60c, and transmits a multi-image registration request. .

  The image server 60a transmits a registration request by unicast using the input IP addresses and port numbers of the image servers 60b and 60c, and each of the image servers 60b and 60c notifies the MAC address of the registration request. Send. Upon receiving this, the image server 60a associates the host names, IP addresses, port numbers and MAC addresses of the image servers 60a, 60b, 60c and registers them in the registration table. From the viewpoint of security, authentication is performed during the registration sequence (A), and the registration procedure becomes more complicated and troublesome.

  As described above, in the conventional system, in order to register an image server for displaying a list of images, it is necessary to receive the setting screen display information and manually enter the host name, IP address, and port number. Met. In addition, the host name, IP address, and port number need only be entered for the number of image servers, and a large number of alphanumeric strings that do not make sense to the user are prone to input errors, resulting in a very comfortable operating environment. It could not be said.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an image server, a program, and a network system that can easily display a list of a plurality of images displayed on a portal screen display and can easily set a single image display. And

  In order to solve the above problems, the present invention transmits portal screen display information when accessed from a terminal via a network, and captures images captured by the own camera and cameras of other image servers in the local area network. An image server that can be displayed on a terminal via a network, and when registering network information for acquiring an image, when registering with automatic setting, the control unit broadcasts a network information acquisition request, The main feature is that a network information acquisition response is received from another image server in the local area network, and the network information is registered in the display image server table.

According to the image server, the program, and the network system of the present invention, a plurality of images to be displayed on the portal screen display can be easily displayed as a list, and display of a single image can be easily set.

  In the first aspect of the present invention, when accessed from a terminal via a network, portal screen display information is transmitted, and an image captured by the own camera and a camera of another image server in the local area network is transmitted to the terminal. An image server that can be displayed via a network. When registering network information for acquiring an image, when registering with automatic setting, the control unit broadcasts a network information acquisition request, and the local area An image server that receives a network information acquisition response from another image server in the network, registers the network information in the display image server table, and displays the network information of the image server that returned the network information acquisition response. Since it is registered in the table, it is displayed in the portal screen display. Image can be a multi-screen display of easily list of. If no image server returns a network information acquisition response, a single image can be displayed on a single screen.

  In the second aspect of the present invention, the network information is an image server including an IP address, a port number, and a MAC address, and the IP address, the port number, and the MAC address are registered in the display image server table. By describing the URL, a plurality of images displayed on the portal screen display can be easily displayed as a multi-screen display of a list. If no image server returns a network information acquisition response, a single image can be displayed on a single screen.

  In the third aspect of the present invention, the network information is an image server including a host name, and the IP address, port number, and MAC address are registered in the display image server table. A plurality of images to be displayed on the portal screen display can be easily made into a multi-screen display of a list. If no image server returns a network information acquisition response, a single image can be displayed on a single screen.

  According to a fourth aspect of the present invention, in the image server, when registering by manual setting, the control unit inputs network information by input means for each other image server, and the control unit sends a network information acquisition request to the network. This is an image server that unicasts to the image server that entered the information, receives a network information acquisition response, and registers it in the display image server table. You can set the display.

  According to a fifth aspect of the present invention, there is provided an image server provided with an automatic setting input button and a manual setting input button that can be input by a graphical user interface in the setting screen display information for displaying the setting screen. Since the automatic setting input button and the manual setting input button are displayed on the setting screen for performing the setting, the automatic setting or the manual setting can be performed only by selecting the automatic setting input button and the manual setting input button.

  The sixth aspect of the present invention is an image server in which network information is displayed in a list of setting screen information templates, and when automatic setting is selected on the setting screen, the network information is registered in the display image server table. In addition, a multi-screen display in which data is written on the setting screen can be made as it is, and a comfortable operation feeling can be obtained.

According to a seventh aspect of the present invention, there is provided automatic setting means for broadcasting a network information acquisition request when a computer is registered by automatic setting, network information when a network information acquisition response is received from another image server in the local area network. Is registered in the image server table for display, and the network information of the image server that has returned the network information acquisition response is registered in the image server table for display. Thus, a plurality of images to be displayed on the portal screen display can be easily displayed as a multi-screen display of a list.

  The eighth aspect of the present invention is a program for causing a computer to function as data reflecting means for describing network information of a display image server table in a template for setting screen display information, and the network information is directly written on the setting screen. Multi-screen display can be provided, and a comfortable operation feeling can be obtained.

  According to a ninth aspect of the present invention, there is provided a first image server connected to a local area network and transmitting portal screen display information when accessed, a second image server connected to the local area network, and the local area A terminal that accesses the first image server via a network including a network, and the portal screen display information includes a description that displays images captured by the cameras of the first image server and the second image server. When the first image server broadcasts the network information acquisition request and receives the network information acquisition response from the second image server when the network information for acquiring the image is automatically registered in the network system, The first image server registers the network information in the display image server table The network information of the image server that returned the network information acquisition response is registered in the display image server table, so that multiple images displayed on the portal screen display can be easily displayed as a multi-screen display of a list. it can. If no image server returns a network information acquisition response, a single image can be displayed on a single screen.

  Hereinafter, an image server, a program, and a network system according to Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of a network system including an image server in Embodiment 1 of the present invention, FIG. 2A is a configuration diagram of an image server in Embodiment 1 of the present invention, and FIG. 2B is an image of FIG. 3 is an explanatory diagram of a functional configuration of a program for automatic setting installed in the server, FIG. 3 is an explanatory diagram of portal screen display information according to the first embodiment of the present invention, and FIG. 4A is a first embodiment according to the present invention. FIG. 4B is an explanatory diagram of a display image server registration screen in the first embodiment of the present invention, FIG. 5 is an explanatory diagram of a display image server table, and FIG. 6 is a first embodiment of the present invention. 5 is a sequence chart of automatic setting in FIG.

  In FIG. 1, 1 is a local area network (hereinafter referred to as LAN), 2 is the Internet, 3 is an interface that can be connected to the Internet 2, and has a plurality of ports on the LAN side for routing to each subordinate IP device. In particular, routers equipped with UPnP function that dynamically set port forwarding according to the UPnP standard, 4a, 4b, and 4c are image servers equipped with DHCP and UPnP functions that can distribute images using the protocol TCP / IP. The network of the present invention is not limited to the LAN 1 and includes a network composed of a wide area network such as the Internet 1 and the LAN 1 depending on the location of a terminal to be accessed.

  Reference numeral 5 denotes a computer device connected to the LAN for managing the operation of the image servers 4a, 4b, and 4c. Reference numeral 6 denotes a router. Reference numeral 7 denotes a terminal that can connect to the Internet 2 and access the image servers 4a, 4b, and 4c. is there. Note that both the computer device 5 and the terminal 7 correspond to the terminal of the present invention. In addition to the UPnP function, the router 3 according to the first embodiment has an IP device in the LAN, that is, the image servers 4a, 4b, and 4c, and the computer device 5 out of predetermined local IP addresses (hereinafter referred to as IP addresses). It is equipped with a DHCP (Dynamic Host Configuration Protocol) server function for assigning addresses.

Hereinafter, the configuration of the image servers 4a, 4b, and 4c will be described. In FIG. 2, 11 is IE.
An interface conforming to the EE802.3 standard for transmitting a request from a communication means such as a browser of the terminal 7 to the image servers 4a, 4b, and 4c and displaying a web page and the like from the image servers 4a, 4b, and 4c. The screen display information described in a markup language such as HTML is transmitted to the Internet 2. Reference numeral 12 denotes a camera unit including a CCD or CMOS image sensor, and 13 denotes an image data generation unit that processes a video signal from the camera unit 12 and compresses it into a compression format such as JPEG format or MPEG format.

  Reference numeral 14 denotes a storage unit that stores a control program and various data. Reference numeral 14a denotes portal screen display information, a setting screen page (setting screen display information of the present invention), and other display instructions and link information for performing screen display. Is a screen display information storage unit that stores screen display information in which is described. The screen display information is described in a markup language such as HTML and a Java (registered trademark) applet. Not only HTML but also other markup languages such as XML and XML may be used. 14b is an image storage unit for storing the image data compressed by the image data generation unit 13, 14c is a port number assigned to the port forwarding table of the router 3 according to the UPnP standard, the WAN side IP address of the router 3, and the MAC of the own device An address information storage unit storing an address, an IP address, a host name, and the like, 14d is a display image server storing a display image server table in which information for displaying a single image or a list of images is displayed in the portal screen display information. It is a table storage unit. The screen display information described in HTML or the like described above is stored in the screen display information storage unit 14a. The image data displayed at this time is stored in the image storage unit 14b of each image server.

  15 is a web server unit that communicates with the network using protocols such as TCP / IP and UDP, and 16 generates screen display information and accesses the web server unit 15 from the communication means of the terminal 4. This is a screen display information generation unit that extracts the screen display information from the storage unit 14 and transmits it. Note that display information for a multi-image screen, which will be described later, is generated and transmitted by the screen display information generating unit 16 based on the display image server table.

  Reference numeral 17 denotes a control unit, which is configured as a function realizing unit that reads a control program into a central processing unit (CPU) and performs each function. 17a is a port management unit that executes the UPnP function and stores and manages the WAN side port number assigned to the port forwarding table of the router 3 and the WAN side IP address of the router 3 acquired by the request in the address information storage unit 14c, Reference numeral 17b denotes DHCP management means for transmitting a DHCP discovery packet and receiving IP address assignment from a DHCP server or the like. The DHCP management unit 17b and the port management unit 17a request the router 3 equipped with the DHCP function and the UPnP function to allocate the WAN side IP address and the WAN side port number. register. Note that the DHCP server is not necessarily installed in the router 3 and may be arranged in the LAN.

  17c is an automatic setting execution means for broadcasting a UDP packet in the LAN 1 in order to automatically set an image of portal screen display information displayed on the computer device 5 when the computer device 5 requests the image server 4a to perform automatic setting. Reference numeral 17d denotes a table registration means for extracting registration information from a response packet from the image server that has received this packet and creating a display image server table. The automatic setting execution means 17c and the table registration means 17d can be registered in the display image server table simply by broadcasting a registration information transmission request without manually inputting the IP address, port number, and host name.

Reference numeral 17e denotes data reflection executing means for displaying data on the setting screen display information template by the screen display information generating unit 16 in order to reflect the data on the setting screen when the display image server table is completed by broadcasting. The screen display information generating unit 16 automatically generates screen display information in which data is displayed in the setting screen display information template, and the control unit 17 registers the generated screen display information in the storage unit 14. In this way, the screen display information of the list display (multi-image screen for access) 22 of the own camera and other image servers shown in FIG. 3B can be generated and registered.

  As shown in FIG. 2B, the automatic setting program includes automatic setting execution means 17c, table registration means 17d, and data reflection execution means 17e, and is installed in the image server 4a. However, it may be mounted by communication using the above-described program such as an applet or a plug-in. The data reflection execution unit 17e functions integrally to operate the screen display information generation unit 16 to generate screen display information reflecting the data.

  Reference numeral 17f denotes registration information transmission means for performing processing for extracting network information registered in the address information storage unit 14c. When the registration information transmission unit 17f receives a registration information transmission request (network information acquisition request of the present invention) requesting an IP address, a port number, a MAC address, and a host name via the network interface 11, the registration information transmission unit 17f stores the address information. These pieces of information registered in the unit 14c are extracted and transmitted as a registration information response (network information acquisition response of the present invention). The automatic setting execution unit 17c, the table registration unit 17d, the data reflection execution unit 17e, and the registration information transmission unit 17f are all function realizing units configured by a program using a CPU as hardware.

  Reference numeral 18 denotes a drive unit such as a motor that performs operations such as pan and tilt of the camera unit 12, and 19 denotes a camera control unit that drives the drive unit 18. The control unit 17 processes a request from the communication unit and operates the HTML generation unit 16 to generate page information, retrieves image data to be transmitted to the communication unit from the storage unit, and further sends a request to the camera control unit 18. The operation is performed by designating an imaging mode.

  By the way, when a screen setting request is made for changing the portal screen from the computer device 5, the control unit 17 of the image server 4 a reads the setting screen display information stored in the screen display information storage unit 14 a and sends it to the computer device 5. Send. When an automatic setting request is made by a graphical interface using a setting screen (see FIG. 4A described later) displayed based on this, the automatic setting executing means 17c of the image server 4a that has received the automatic setting request is in LAN1. Broadcast a registration information transmission request for requesting registration information.

  The image servers 4b and 4c in the LAN 1 receive this UDP packet, and the registration information transmission unit 17f extracts the IP address, port number, MAC address, and host name registered in the address information storage unit 14c, and generates a registration information response. And unicast to the image server 4a. The table registration unit 17d of the image server 4a extracts the MAC address, IP address, port number, and host name from the data area of the received packet, and completes the display image server table shown in FIG. Note that the MAC address, IP address, and port number may be extracted from the header area of the received packet.

Further, the setting screen input by this graphical user interface will be described. The screen display shown in FIG. 4A is a setting screen in which setting screen display information such as HTML is displayed on the computer device 5. A registration information display box of an IP address box 23, a port box 24, and a host name box 25, a delete button 26 for deleting information displayed on these boxes, an automatic setting button 27 for making an automatic setting request, and a manual setting button 28 are provided. Is displayed. In addition, a registration button 29 that can be confirmed when pressed when registration information is displayed, and a cancel button 30 that can cancel all the registration information displayed on the setting screen are provided. Reference numeral 31 denotes a registration number of the image servers 4a, 4b, and 4c that can display images, and is associated with the image layout of the portal screen display information. However, the image server 4a is always registered with registration number 1. The delete button 26, the automatic setting button 27, the manual setting button 28, the registration button 29, and the cancel button 30 can all be input using a mouse or the like.

  Next, an operation for reflecting network information on the setting screen will be described. When a screen setting request is made, the setting screen displayed on the computer device 5 has the IP address box 23, the port box 24, and the host name box 25 blank as shown in FIG. Thereafter, the automatic setting execution unit 17c broadcasts a registration information request, and the table registration unit 17d extracts the MAC address, IP address, port number, and host name of the transmission source image server 4 from the registration information response, and displays the display image server table. create. Then, the control unit 17 registers the display image server table in the image server table storage unit 14d.

  Thereafter, when the data reflection execution unit 17e instructs the screen display information generation unit 16 to display the network information in the setting screen display information template, the screen display information generation unit 16 displays the screen display information storage unit. The setting screen display information is read from 14a and the network information is read from the display image server table storage unit 14d to generate the setting screen display information as shown in FIG. The computer device 5 displays the setting screen display information (display image server registration screen display information).

  For example, in the display image server registration screen shown in FIG. 4B, the IP address “192.168.0.151”, the port number “8001”, the host name “camera001”, and the image server 4b are IP addresses. An address “192.168.0.152”, a port number “8002”, a host name “camera002”, an IP address “192.168.0.153”, a port number “8003”, and a host name “camera003” are displayed for the image server 4c. In the display image server table shown in FIG. 5, MAC addresses that are not displayed on the display image server registration screen are registered in the registration sequence. That is, in the image server 4a, the MAC address “0080FF445510” extracted from the registration information response is registered in association with the IP address, the port number, and the host name. Similarly, the MAC address “0080FF445520” is associated with the image server 4b and the MAC address “0080FF445530” is associated with the image server 4c and registered. The network information of the image server 4a is extracted from the mapping table of the address information storage unit 14c and displayed.

  By using these, for the image servers 4b and 4c, the screen display information generating unit 16 uses, for example, an IP address and a port number to display <img src = http://192.168.0.152:8002/image/image.jpg > Etc., you can request the image "image.jpg", and if you can use a DDNS server (not shown), use the host name <img src = http://xxx.net/camera002 You can request an image with /image/image.jpg> etc.

  When generating portal screen display information in which the images of the image servers 4a, 4b, and 4c are displayed as a list, if the registration button 29 is pressed and registered as it is, the display image server table in the display image server table storage unit 14d is displayed. Determine. Then, the multi-image screen shown in FIG. 3B is displayed. Further, when displaying portal screen display information in which the images of the image servers 4a, 4b, and 4c are displayed as a list, a predetermined URL of the image server 4a is accessed from a terminal (for example, the computer device 5) in the LAN 1. To do. When the control unit 17 of the image server 4 is accessed by specifying a predetermined URL as described above from a terminal in the LAN 1, the control unit 17 extracts the screen display information of the access multi-image screen 22 from the storage unit 14, To your device.

  On the other hand, if the delete button 26 is used to delete the data of the image servers 4b and 4c and the registration button 29 is pressed for transmission, the single image screen shown in FIG. 3A displaying the image of the image server 4a alone is displayed. Will be.

  In the manual setting, characters and numbers are input to each column (IP address box 23, port box 24, host name box 25) of the display image server registration screen from the input means (not shown) of the computer apparatus 5. The manual setting button 28 is pressed. By the operation of this input means, a manual setting request including information input in each field is transmitted to the image servers 4a, 4b, 4c. The image servers 4a, 4b, and 4c register the input information transmitted from the computer device 5 in the display image server table.

  Next, the automatic setting sequence according to the first embodiment will be described. FIG. 6 shows a sequence chart for automatic setting. A screen setting request is made from the computer device 5 (sq1). The control unit 17 of the image server 4a reads the setting screen display information and transmits it to the computer device 5 (sq2). When an automatic setting request is made based on this (sq3), the automatic setting execution means 17c of the image server 4a that receives this broadcasts a registration information transmission request (sq4). The image server 4b unicasts the registration information response to the image server 4a (sq5). Similarly, the image server 4c unicasts a registration information response to the image server 4a (sq6).

  The table registration unit 17d of the image server 4a extracts the MAC address, IP address, and port number of the transmission source from the received packet, completes the display image server table, and generates display image server registration screen display information. Then, an automatic setting response is transmitted to the computer device 5 (sq7). When a registration request is made from the display image server registration screen (sq8), the image server 4a determines the display image server table (sq9).

  As described above, the image server, the program, and the network system according to the first embodiment of the present invention can easily display the portal screen display information as a list of a plurality of images, and can easily set a single display. Applicable to image server.

  In the first embodiment, the automatic setting operation is started when an automatic setting request is received from the computer apparatus 5. However, the power ON or reset of the image server 4 is set as the automatic setting start timing. You can also.

  In the first embodiment of the present invention, automatic generation of screen display information of the access multi-image screen 22 from within the LAN 1 has been described. However, automatic display of screen display information of the access multi-image screen 22 from the Internet 2 has been described. You may make it produce | generate. In this case, for example, the automatic setting execution means 17c of the image server 4a sends the registration information transmission request to the image servers 4b and 4c as the port number for the image servers 4b and 4c assigned to the port forwarding table of the router 3 and the router. 3, the table registration means 17 d extracts these pieces of information from the received packet to complete the display image server table, and displays the display image server registration screen display information. Generate an automatic setting response to the computer device 5. When a registration request is made from the display image server registration screen, the image server 4a determines the display image server table. Thereby, screen display information of the multi-image screen 22 for access from the Internet 2 is automatically generated.

Further, both the screen display information of the access multi-image screen 22 from within the LAN 1 and the screen display information of the access multi-image screen 22 from the Internet 2 may be automatically generated. In this case, for example, the automatic setting execution means 17c of the image server 4a sends the registration information transmission request to the image servers 4b and 4c as the registration information transmission request, the port numbers of the image servers 4b and 4c assigned to the port forwarding table of the router 3, and the router 3 The WAN side IP address, the IP address of the requested image server 4a, the port number, and the host name are requested. On the other hand, the table registration unit 17d extracts these pieces of information from the received packet and displays it for access from within the LAN1. An image server table and a display image server table for access from the Internet 2 are completed, display image server registration screen display information is generated, and an automatic setting response is transmitted to the computer apparatus 5. When a registration request is made from the display image server registration screen, the image server 4a determines the display image server table. As a result, a multi-image screen for access from within the LAN 1 and a multi-image screen for access from the Internet 2 are automatically generated. Then, an access source detection unit (not shown) is provided in the image server 4 to determine which multi-screen to display based on the IP address of the request source of the multi-image screen.

  If the IP address requesting the multi-image screen is an IP address in the LAN 1, the multi-image screen for accessing from the LAN 1 is accessed from the Internet 2 if the IP address is not in the LAN 1. To display a multi-image screen.

  The present invention can be applied to an image server, a program, and a network system that can easily display a list of a plurality of images displayed on a portal screen display and can easily set display of a single image.

1 is a configuration diagram of a network system including an image server in Embodiment 1 of the present invention. (A) Configuration diagram of image server in Embodiment 1 of the present invention, (b) An explanatory diagram of a functional configuration of a program for automatic setting installed in the image server of (a) Explanatory drawing of the information for portal screen display in Example 1 of this invention (A) Explanatory drawing of the setting screen in Example 1 of this invention, (b) Explanatory drawing of the display image server registration screen in Example 1 of this invention. Illustration of display image server table Sequence chart of automatic setting in Embodiment 1 of the present invention Configuration diagram of a network system including a conventional image server Conventional chart display setting and portal screen display information browsing sequence chart

Explanation of symbols

1 Local Area Network (LAN)
2,40 Internet 3,6,70 Router 4a, 4b, 4c, 60a, 60b, 60c Image server 5, 80 Computer device 7 Terminal 11 Network interface 12 Camera unit 13 Image data generation unit 14 Storage unit 14a Screen display information storage Unit 14b Image storage unit 14c Address information storage unit 14d Display image server table storage unit 15 Web server unit 16 Screen display information generation unit 17 Control unit 17a Port management unit 17b DHCP management unit 17c Automatic setting execution unit 17d Table registration unit 18 Camera control unit 21 Single display 22 Multi-image screen for access 23 IP address box 24 Port box 25 Host name box 26 Delete button 27 Automatic setting button 28 Manual setting button 29 Registration button 30 key Cancel button 31 Registration number 50 Client PC

Claims (9)

When accessed from a terminal via a network, the portal screen display information is transmitted, and an image captured by the camera of the own camera and another image server in the local area network is displayed on the terminal via the network. When registering network information for acquiring the image by automatic setting when the network information for acquiring the image is registered, the control unit broadcasts a network information acquisition request and transmits the other information in the local area network. An image server, which receives a network information acquisition response from an image server and registers the network information in a display image server table. 2. The image server according to claim 1, wherein the network information includes an IP address, a port number, and a MAC address. The image server according to claim 2, wherein the network information includes a host name. The image server according to any one of claims 1 to 3, wherein, when registering by manual setting, the control unit inputs the network information by an input unit for each of the other image servers, and the control unit An image server characterized by unicasting a network information acquisition request to an image server that has input the network information, receiving a network information acquisition response, and registering it in the display image server table. 5. The image server according to claim 4, wherein the setting screen display information for displaying the setting screen is provided with an automatic setting input button and a manual setting input button that can be input by a graphical user interface. 6. The image server according to claim 5, wherein the network information is displayed as a list in a template of the setting screen information. Automatic setting means for broadcasting a network information acquisition request when registering a computer with automatic setting, and when receiving a network information acquisition response from another image server in the local area network, registers the network information in the display image server table A program that functions as a table registration means. 8. The program according to claim 7, wherein the computer functions as data reflecting means for causing the network information of the display image server table to be described in the setting screen display information template. A first image server connected to a local area network and transmitting portal screen display information when accessed, a second image server connected to the local area network, and the network including the local area network A network system that includes a terminal that accesses the first image server, and the portal screen display information includes a description to display images captured by the cameras of the first image server and the second image server When the network information for acquiring the image is registered by automatic setting, the first image server broadcasts a network information acquisition request and receives a network information acquisition response from the second image server. Image server for displaying the network information by the first image server Network system and registers the Buru.

Images