JP2013051678A - Image distribution device - Google Patents

Abstract

The present invention provides a mechanism capable of reducing the load of an image distribution apparatus according to a browsing environment of a subscriber of a camera image distribution service and displaying an image taken by a surveillance camera on a subscriber terminal.
An image distribution device that distributes an image captured by an imaging device to a wireless terminal stores an address of a base where the imaging device is installed, and an address that can identify the base from which the image is requested to be distributed from the wireless terminal An image distribution request including the address, and the wireless terminal that has received the image distribution request distributes the image acquired from the imaging device that has received the image acquisition request from the image distribution device, In accordance with the base address stored in the data, it is determined whether to distribute the image to the wireless terminal that has received the image distribution request. If it is determined not to distribute the image, the image distribution is performed to the wireless terminal that has received the image distribution request. Information that can display the image acquired from the imaging device that has received the image acquisition request from the wireless terminal that has received the request is transmitted.
[Selection] Figure 1

Description

  The present invention relates to an image distribution apparatus, a control method, and a program.

In recent years, on a WEB site such as a camera image distribution service, an image captured by a surveillance camera is managed by a WEB server and distributed via a WEB browser of a terminal. Such a WEB site can be browsed from a WEB browser of a mobile phone.
The following technologies are disclosed as technologies for communication between the surveillance camera and the wireless communication terminal.

In Prior Literature 1, since a communication fee is charged when using a public wireless communication line, it is detected that the wireless communication terminal is in a predetermined position, and the surveillance camera and the wireless communication terminal are in a short distance wireless communication for a predetermined time. Techniques for controlling to operate are disclosed.
The following technologies are disclosed as technologies for communication between a plurality of image distribution apparatuses connected to a monitoring camera.

  In Prior Document 2, the image distribution server detects the network address from the header of the distribution request packet in order to identify the monitoring camera with the same name in different management offices, and the same network address as the network address assigned to the image distribution server A technique for determining whether the address is a network address of another management office is disclosed.

JP 2004-200998 A JP 2003-376036 A

  In the camera image distribution service, it is necessary to stably supply a high-quality real-time image to the viewer for the monitor image (video) monitored by the monitoring camera. Is required. In order to ensure high image distribution performance without stopping image distribution or delay in image distribution for terminals viewed from the image distribution device, the equipment of the device serving as the image distribution server can be enhanced or contracted. Although it is necessary to accurately grasp the browsing status of the viewer, such as the number of viewers, the conventional technology quickly adjusts the amount of image delivery in the image delivery device in response to the immediate viewing environment of the viewer of the camera image delivery service. There is a problem that can not be.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a mechanism that can reduce the load of an image distribution apparatus according to the viewing environment of a subscriber of a camera image distribution service and display an image captured by a surveillance camera on a subscriber terminal.

  The present invention is an image distribution apparatus that is communicably connected to a wireless terminal and an imaging apparatus and distributes an image captured by the imaging apparatus to the wireless terminal, and is an address of a base where the imaging apparatus is installed Base data storage means for storing base data, accepting means for receiving an image distribution request including an address that can specify the base from which the imaging device has requested distribution of images taken from the wireless terminal, and the image distribution request. Image distribution means for distributing the image acquired from the imaging device that has received the image acquisition request from the image distribution device to the received wireless terminal, an address that can identify the received base, and a base address stored in the base data According to the above, the wireless terminal that has received the image distribution request is acquired from the imaging apparatus that has received the image acquisition request from the image distribution apparatus. A determination means for determining whether or not to distribute an image; and if the determination means determines that the image is not distributed, a wireless terminal that has received the image distribution request from a wireless terminal that has received the image distribution request And an image display information transmitting means for transmitting information capable of displaying an image acquired from the imaging apparatus that has received the image acquisition request.

  The image display information transmitting means transmits the information that can be displayed, and the image acquired from the imaging device based on the information that can be displayed to a wireless terminal that has received the image distribution request at a predetermined position. It further comprises frame transmission means for transmitting a frame to be arranged.

  In addition, a group data storage unit that stores group data in which a plurality of imaging devices and addresses of bases where the plurality of imaging devices are installed are associated, and a plurality of images captured by the plurality of imaging devices from the wireless terminal A plurality of image receiving means for receiving the distribution request, an address for identifying the base received by the receiving means, and the base address stored in the group data, to the wireless terminal that has received the multiple image distribution request. A plurality of site determination means for determining whether or not there is an image to be acquired from an imaging device that has received an image acquisition request from the image distribution device, and the image display information transmission means further includes: If it is determined that there is an image to be acquired by the multiple site determination means, the request for distribution of the multiple image has not been accepted. Terminal, and transmits the plurality of images and information capable of displaying images acquired from the imaging device which receives the image acquisition request from the wireless terminal to the distribution request is accepted for.

  Further, the displayable information received by the wireless terminal that has received the image distribution request includes the address of the base where the imaging device that makes the image acquisition request is installed in order to directly acquire the image. It is characterized by being.

  Further, the displayable information received by the wireless terminal that has received the image distribution request includes a local IP address of the imaging apparatus that makes the image acquisition request in order to directly acquire an image. And

In addition, the address that can identify the base that requested distribution of the image captured by the imaging device is a network address of a router device that is acquired when the image distribution request is relayed to the image distribution device. To do.
The image distribution request received by the receiving unit further includes identification information of an imaging device that distributes an image.

  According to the present invention, it is possible to provide a mechanism capable of reducing the load on the image distribution apparatus according to the browsing environment of the subscriber of the camera image distribution service and displaying the image taken by the monitoring camera on the subscriber terminal.

It is a figure which shows the system configuration | structure of the whole image delivery system. It is a figure which shows the hardware constitutions of a radio | wireless terminal and an image delivery apparatus. It is a figure which shows one example of the flowchart in an image delivery system. It is a figure which shows one example of the flowchart in an image delivery system. It is a figure which shows an example of the screen which a mobile telephone displays. It is a figure which shows the hardware constitutions of a network camera. It is a figure which shows one example of a database. It is a figure which shows one example of the flowchart in an image delivery system. It is a figure which shows one example of the flowchart in an image delivery system. It is a figure which shows an example of the screen which a wireless terminal displays. It is a figure which shows an example of the screen which a wireless terminal displays. It is a figure which shows an example of the screen which a wireless terminal displays. It is a figure which shows an example of the screen which a wireless terminal displays. It is a figure which shows an example of the screen which a wireless terminal displays. It is a figure which shows one example of a database. It is a figure which shows an example of the screen which a wireless terminal displays. It is a figure which shows an example of the screen which a wireless terminal displays.

Referring to FIG.
FIG. 1 is a system configuration diagram of an image distribution system according to the present invention.

  Reference numeral 100 denotes an image distribution server (image distribution apparatus), which is communicably connected to the wireless terminal (mobile phone) 200, and distributes images taken by the network cameras (monitoring cameras) 201 and 206 to the wireless terminal 200. WEB site. Furthermore, an image taken by the network camera 201 and transmitted to the image distribution server 100 can be stored. The image distribution server 100 is communicably connected to a network camera 201, a wireless LAN access point 202, and a base station 203 of a mobile phone network via a communication line (Internet line) 300.

  Reference numeral 200 denotes a wireless terminal, which can access WEB contents (image distribution service) of the image distribution server 100 via a WEB browser of the wireless terminal. As a communication method for accessing the WEB content (image distribution service) of the image distribution server 100 from a wireless terminal, a method using a 3G line for communication via a base station 203 of a mobile phone network, or a wireless LAN access point 202 is used. There is a method of using Wi-Fi for communication. The wireless terminal 200 is a smartphone or a mobile phone, and is a terminal capable of wireless communication with the wireless LAN access point 202.

Reference numeral 201 denotes an imaging apparatus, which is a pan / tilt camera that captures an image at an installed location. The imaging device is communicably connected to the image distribution server 100 via a communication line (Internet line) 300. The imaging device 201 is a monitoring camera or a network camera, and is a terminal that can communicate with the image distribution device.
Reference numeral 202 denotes a wireless LAN access point. Wireless communication is performed with the wireless terminal 200 using Wi-Fi.

  Reference numeral 203 denotes a mobile phone base station. Communicate with the wireless terminal 200 via a 3G line. The wireless terminal 200 can perform Internet communication (3G line) with the image distribution apparatus via the mobile phone base station 203.

  A relay device 204 is a router that relays network communication between the wireless terminal 200 and the image distribution device 100. The relay apparatus 204 has “200.50.1.80” as a network address, for example. In the present invention, it is used as the network address of the base.

Reference numeral 205 denotes a relay device, which is a router that relays network communication between the imaging device 201 and the image distribution device 100. The relay device 205 has “20.1.5.6” as a network address, for example. In the present invention, it is used as the network address of the base.
FIG. 2 will be described.
FIG. 2 is a diagram illustrating a hardware configuration of the image distribution server 100 and the wireless terminal 200.
In FIG. 2, 401 is a CPU that comprehensively controls each device and controller connected to the system bus 404.

  In the ROM 402 or the external memory 411, a BIOS (Basic Input / Output System) or an operating system program (hereinafter referred to as OS), which is a control program of the CPU 401, or a function to be executed by each server or each PC, which will be described later. Various programs to be stored are stored.

Reference numeral 403 denotes a RAM which functions as a main memory, work area, and the like for the CPU 401. The CPU 401 implements various operations by loading a program necessary for execution of processing from the ROM 402 or the external memory 411 into the RAM 403 and executing the loaded program.
An input controller 405 controls input from a keyboard (KB) 409 or a pointing device such as a mouse (not shown).

  A video controller 406 controls display on the display unit 410. Note that the display unit 410 is not limited to a CRT, but may be another display such as a liquid crystal display. These are used by the administrator as needed. Further, the display unit may include a touch panel function in which the user specifies a target position in the display screen with a finger, a pen, or the like.

  Reference numeral 407 denotes a memory controller, which is connected via an adapter to a hard disk (HD), flexible disk (FD), or PCMCIA card slot for storing a boot program, various applications, font data, user files, editing files, various data, and the like. Controls access to an external memory 411 such as a compact flash (registered trademark) memory.

  Reference numeral 408 denotes a communication I / F controller that is connected to and communicates with an external device via the network (communication line) 300, and executes communication control processing in the network. For example, communication using TCP / IP is possible.

  Note that the CPU 401 enables display on the CRT by executing, for example, outline font rasterization processing on the display information area in the RAM 403. In addition, the CPU 401 enables a user instruction with a mouse cursor (not shown) on the CRT.

Various programs to be described later for realizing the present invention are recorded in the external memory 411 and executed by the CPU 401 by being loaded into the RAM 403 as necessary. Further, a data file and a data table used when executing the program are also stored in the external memory 411, and detailed description thereof will be described later.
FIG. 3 will be described.

  In step S101, first, the WEB browser of the wireless terminal 200 is activated to access the WEB content (image distribution service) of the present invention. Thereafter, a user login request (login information) is transmitted to the image distribution apparatus 100.

  In order to view (monitor) a real-time image (video) captured by the imaging apparatus 201 on the wireless terminal 200, the wireless terminal 200 transmits a distribution request for an image captured by the imaging apparatus to the image distribution apparatus 100.

In order to specify an imaging device desired by the logged-in user, the wireless terminal 200 transmits information (camera ID) specifying the imaging device together with an image distribution request.
Note that a plurality of pieces of information (camera IDs) specifying the imaging device to be transmitted may be transmitted in order to request distribution of a plurality of images.

  At the time of this distribution request, as the base network address of the wireless terminal, when the distribution request passes through the relay device 204, the network address of the relay device 204 automatically acquired from the relay device 204 is further transmitted to the image distribution device 100. . That is, the network address “200.50.1.80” that can identify the relay device 204 is transmitted to the image distribution device 100 as the base network address of the wireless terminal.

In step S <b> 102, the image distribution apparatus 100 captures an image captured by the imaging apparatus including information (camera ID) identifying the imaging apparatus and the base network address “200.50.1.80” of the wireless terminal 200 from the wireless terminal 200. The distribution request is accepted.
In step S103, the image distribution apparatus 100 acquires the base network address of the imaging apparatus specified by the camera ID (address acquisition unit).

As an example of the acquisition method, the address acquisition unit refers to the address storage unit (network camera information data) stored in the external memory 411, and the base network address (for example, “200” of the imaging device specified by the camera ID (for example, A01). .50.1.80 ").
For example, “200.50.1.80” is the network address of the relay device that relays the communication of the surveillance camera installed in the Kachidoki branch.

  As an example of the acquisition method, the address acquisition unit acquires the base network address (for example, “200.50.1.80”) of the imaging device specified by the camera ID (for example, A01) with reference to the relay device 204.

  Further, the local IP of the specified imaging device is acquired from the information specifying the imaging device included in the distribution request received in step S102 (local IP acquisition means).

  As an example of the acquisition method, the local IP acquisition unit refers to the local IP storage unit (network camera information data) stored in the external memory 411, and the local IP (for example, “01” of the imaging apparatus identified by the camera ID (for example, A01). 198.168.1.10 ").

  As an example of the acquisition method, the local IP acquisition unit acquires the local IP (for example, “198.168.1.1”) of the imaging apparatus specified by the camera ID (for example, A01) with reference to the imaging apparatus 201.

  In step S104, the image distribution apparatus 100 determines the base network address (for example, “200.50.1.80”) received in step S102 and the base network address (for example, “200.50.1.80”) acquired in step S103. ) To determine whether the wireless terminal that has received the distribution request and the imaging device that distributes the image to the wireless terminal are under the network at the same location, the image distribution apparatus 100 is connected to the wireless terminal that has received the distribution request. It is determined whether or not an image captured by the imaging device is to be distributed (image distribution determination means).

  When receiving information (camera ID) for specifying a plurality (two or more) of imaging devices in step S102, the image distribution determining means determines the number of information (camera ID) to be specified, and specifies information (camera ID). ) And the subsequent processing (after step S103) may be divided. Needless to say, in the case of a plurality of frames, the number of frames for displaying images of frame information and the number of images transmitted from the imaging apparatus are also plural.

  Here, the base network address of the wireless terminal received in step S102 is the network address of the first relay device 204 that is communicably connected to the image distribution device that relays the distribution request to the image distribution device (for example, “200. 50.1.80 ").

  Here, the base network address of the imaging device acquired in step S103 is the network address of the second relay device 205 that is communicably connected to the image distribution device and relays the image captured by the imaging device to the image distribution device. (For example, “200.50.1.80”).

In other words, the network determination unit distributes the image to the wireless terminal that has received the distribution request and the wireless terminal according to whether the network address of the first relay device matches the network address of the second relay device. Are under the network of the same base.
Here, if it is determined that they are under the same base network (network addresses match), the process proceeds to step S105.
Here, if it is determined that they are not under the same base network (network addresses do not match), the process proceeds to A.

In step S <b> 105, the image distribution apparatus 100 displays frame information (WEB screen) 503 that can display an image captured by the imaging apparatus and an image acquired from the imaging apparatus that distributes the image to the wireless terminal without using the image distribution apparatus. The transmission request is transmitted to the wireless terminal that has received the distribution request (frame information transmission means).
Here, the frame information includes session information (connection request) for connecting the wireless terminal that has received the distribution request and the imaging device that distributes the captured image.
The frame information is WEB screen information in which the photographed image is empty, the photographed image is not included, there is a frame for arranging the photographed image, and the photographed image is empty.

  Furthermore, the local IP (for example, “198.168.1.1”) of the imaging apparatus 201 acquired in step S103 is transmitted as session information to the wireless terminal 200 (local IP transmission unit). Thereby, it is possible to notify the wireless terminal 200 of the local IP (for example, “192.168.1.1”) of the imaging apparatus 201 that is the transmission destination of the connection request.

  In step S <b> 106, the wireless terminal 200 receives frame information including session information in which the local IP of the imaging device 201 is written from the image distribution device 100.

  In step S107, the wireless terminal 200 connects in accordance with the session information received in step S106 (for example, “198.168.1.1”) in order to directly acquire an image from the imaging device 201 without going through the image distribution device. A request (image distribution request) is transmitted to the imaging apparatus 201.

  Before transmitting the connection request (image distribution request), the wireless terminal 200 not only transmits the local IP (for example, “198.168.1.1”) of the imaging apparatus 201 received in step S106, but also the wireless terminal 200. It automatically acquires its own local IP (for example, “192.168.1.10”) and adds it to the session information included in the connection request. As a result, the local IP (for example, “192.168.1.10”) of the wireless terminal 200 that is the transmission destination of the image distribution can be notified to the imaging apparatus 201.

  In step S108, the imaging apparatus 201 receives a connection request (image distribution request) from the wireless terminal 200, and the local IP (for example, “198.168.1.1”) of the imaging apparatus 201 and the local IP of the wireless terminal 200 itself. (For example, “192.168.1.10”) is used to establish a session with the wireless terminal 200.

In step S <b> 109, the imaging apparatus 201 does not pass through the image distribution apparatus 100, but is connected to the wireless terminal 200 via the relay apparatus 205 (for example, network address “200.50.1.80”) and the wireless LAN access point 202. Transmits an image 502 taken by the user.
In step S110, the wireless terminal 200 receives the image 502 captured and distributed by the imaging device 201.
In step S111, the wireless terminal 200 inserts (combines) the image 502 received in step S110 into the frame information 503 in which the captured image is empty.
In step S112, the wireless terminal 200 displays the screen (FIG. 5) on the display unit by the WEB browser of the wireless terminal 200.
FIG. 4 will be described.
In step S201, the image distribution apparatus 100 transmits an image distribution request to the imaging apparatus 201 identified by the camera ID in step S102.
In step S <b> 202, the imaging apparatus 201 receives an image distribution request from the image distribution apparatus 100.

In step S203, the imaging apparatus 201 transmits (distributes) the image 502 captured by the imaging apparatus 201 to the image distribution apparatus 100 via the relay apparatus 205 (for example, the network address “20.1.5.6”).
For example, “222.1.5.6” is a network address of a relay device that relays communication of a surveillance camera installed at the Hamamatsucho head office.
In step S <b> 204, the image distribution apparatus 100 receives the image 502 captured and distributed by the imaging apparatus 201.

In step S205, the image distribution apparatus 100 inserts (synthesizes) the image 502 received in step S204 into the frame information 503 in which the captured image is empty, and generates a screen (FIG. 5).
In step S206, the image distribution apparatus 100 transmits (display instruction) the screen (FIG. 5) to the wireless terminal 200 that has transmitted the distribution request.
In step S207, the wireless terminal 200 receives the screen (FIG. 5).
In step S208, the wireless terminal 200 displays the screen (FIG. 5) on the display unit by the WEB browser (or the image distribution dedicated application screen) of the wireless terminal 200.
FIG. 5 will be described.
FIG. 5 shows a wireless terminal 200 of the present invention.
Reference numeral 501 denotes an operation button for starting a WEB browser.
Reference numeral 502 denotes a monitoring image (monitoring video) captured by the imaging apparatus 201, and is a frame into which the image 502 is inserted in the frame information (WEB screen).
Reference numeral 503 denotes frame information (WEB screen) of the monitoring image distribution service.
FIG. 6 will be described.
FIG. 6 is a diagram illustrating a hardware configuration of the imaging devices 201 and 206.
In FIG. 6, reference numeral 601 denotes a CPU that comprehensively controls each device and controller connected to the system bus 604.

  In the ROM 602 or the external memory 611, a BIOS (Basic Input / Output System) or an operating system program (hereinafter referred to as OS), which is a control program of the CPU 601, or a function executed by each server or each PC is described later. Various programs to be stored are stored.

  Reference numeral 603 denotes a RAM which functions as a main memory, work area, and the like for the CPU 601. The CPU 601 implements various operations by loading a program or the like necessary for execution of processing from the ROM 602 or the external memory 611 into the RAM 603 and executing the loaded program.

  Reference numeral 607 denotes a memory controller, which is connected via an adapter to a hard disk (HD), flexible disk (FD), or PCMCIA card slot for storing a boot program, various applications, font data, user files, editing files, various data, and the like. The access to the external memory 511 such as a compact flash (registered trademark) memory is controlled.

Reference numeral 608 denotes a communication I / F controller that is connected to and communicates with an external device via a network (communication line) 300, and executes communication control processing in the network. For example, communication using TCP / IP is possible.
Reference numeral 612 denotes a camera control unit which controls image (video) shooting.

Various programs to be described later for realizing the present invention are recorded in the external memory 611 and executed by the CPU 601 by being loaded into the RAM 603 as necessary. Further, a data file and a data table used when executing the program are also stored in the external memory 611, and detailed description thereof will be described later.
FIG. 7 will be described.

FIG. 7 shows a database stored in the image distribution apparatus 100. A network camera managed as a network camera information data for each base network address (router address) and a local IP (camera IP) unique for each network camera (camera ID). (Local IP storage means) and a network camera (camera ID) is stored in association with each base network address (router address) (address storage means).
This is base data that associates the address of the base where each imaging device is installed. Stored by the image distribution apparatus 100 (base data storage means)
FIG. 8 will be described.

  In S301, the smartphone (wireless terminal) displays the screen of FIG. A monitoring icon 1103 that is a real-time monitoring video distribution application is pressed by a user operation.

  11 denotes a desktop top screen of the wireless terminal. When the monitoring icon 1103 is pressed, the wireless terminal transmits an image distribution request to the image distribution apparatus 100. Reference numeral 1101 denotes the radio wave reception sensitivity of Wi-Fi communication, which is connected to the wireless LAN access point 202.

  In S302, the wireless terminal sends an HTTP request for screen display from the smartphone (wireless terminal) to the WEB server (image distribution apparatus) via the wireless access point.

  Each time this HTTP request is transmitted, an HTTP request including the network address outside the router (Internet side) to which the wireless access point is connected is sent to the image distribution apparatus 100.

  In the case of an HTTP request using a 3G line from a smartphone, the address of the router (relay device) cannot be acquired because the router does not pass through the router for each base, and the base cannot be determined. Therefore, it can be applied when a screen display request is sent to the WEB server via the wireless access point.

Along with the image distribution request, the user ID and password are also transmitted, and automatic login is completed. When the user registers user information in advance on the login screen as shown in FIG. 10, this automatic login is possible.
Further, a group data selection screen (not shown) may be displayed here, and the user desired group data (FIG. 15) may be selected by the user.

In step S <b> 303, the image distribution apparatus 100 receives an image distribution request including an address that can identify the base that requested distribution of the image captured by the imaging apparatus from the wireless terminal (accepting unit).
Note that. Here, as shown in FIG. 12, a request for distributing a plurality of images (videos) taken by a plurality of imaging devices may be received.

1201 in FIG. 12 is a real-time video distribution screen displayed by the wireless terminal. A group data name 1202 is displayed. Reference numerals 1203 to 1206 denote six arrangement frames and images (real-time videos) arranged in the arrangement frames, and the images (real-time videos) are updated at predetermined intervals while the real-time video distribution screen is displayed. A user name 1209 is displayed. Reference numeral 1210 denotes a button for shifting to another operation menu.
The image distribution request may further include information (camera ID, port number, etc.) for specifying the imaging device that distributes the image from the wireless terminal side.
The user can be identified by the login information (user ID), and the group data registered by the user can be referred to.

  In S <b> 304, the image distribution apparatus 100 sets the base network address + port number (camera identification number) in advance as a list display group for each arrangement frame for displaying a list of videos on the screen (for example, 6 videos). Therefore, the corresponding group data (FIG. 15) is read from the login data.

  In step S305, the image distribution apparatus 100 determines whether or not the base determination of all the arrangement frames (A to F) has been completed, and loops the processing subsequent to step S306. If completed, proceed to S313.

  In S <b> 306, the image distribution apparatus 100 analyzes the network address outside the router (Internet side) described in the received HTTP request, and determines where the smartphone is currently located (location of the router). .

  The image distribution apparatus 100 can know where the base where the wireless terminal is currently located (the position of the router) is based on the network address outside the router (Internet side) that has been received. The base network address is compared, and the base matches are determined for each layout frame.

  In the processing after S306, for the arrangement frame that matches the base where the wireless terminal is currently located, instead of the base network address + port number (camera number) set in advance by the user, The acquisition source information changed to the local IP is embedded in the arrangement frame. Since the server does not have a base network address, the video cannot be acquired here. If it is transmitted to the WEB browser of the wireless terminal as it is, the WEB browser of the wireless terminal sends a video distribution request to the target camera according to the acquisition destination information received by the WEB browser of the wireless terminal, and the WEB browser of the wireless terminal is now Base network address + port number Obtain video from the camera's local IP information

  In this case, since the inset composition processing of the video to the frame is performed after the list display screen is transmitted to the wireless terminal on the browser side of the wireless terminal, the video is directly transmitted to the wireless terminal without going through the image distribution apparatus 100. be delivered.

  On the other hand, for an arrangement frame that does not match the base where the wireless terminal is currently located, information on the network address + port number (camera ID) of each base preset by the user is embedded in the arrangement frame as video acquisition destination information. Then, the image distribution apparatus 100 sends a video distribution request to the target camera, and the image distribution apparatus 100 acquires the video from the information of the base network address + port number (camera number). Note that in this case, the inset composition processing of the video in the frame is performed before the image distribution apparatus 100 transmits the list display screen to the wireless terminal, so that the video is distributed via the image distribution apparatus 100. Become.

  For each of all six placement frames (A to F), the wireless terminal that received the image distribution request acquires the image from the image distribution apparatus according to the address that can identify the received base and the base address stored in the base data. It is determined whether or not to distribute the image acquired from the imaging device that has received the request (determination means).

Here, the address that can specify the base that requested distribution of the image captured by the imaging device may be an address outside the router device (WAN side) that is acquired when the image distribution request is relayed to the image distribution device 100. This is an address that can categorize the network environment for each site (for each company).
In addition, the determination unit may determine whether to distribute the image acquired from the imaging device via the image distribution device to the wireless terminal that has received the image distribution request.

Further, here, when receiving a distribution request for a plurality of images taken by a plurality of imaging devices from a wireless terminal, the imaging device that has received an image acquisition request from the image distribution device among the plurality of images distributed to the wireless terminal It is also determined whether there is an image to be acquired from (multi-site determination means).
In step S <b> 307, the image distribution apparatus 100 acquires the address of the relay apparatus (router) for each of all six arrangement frames (A to F) from FIG. 15.
In step S308, the image distribution apparatus 100 transmits a request to the relay apparatus (router) for each of all six arrangement frames (A to F).
In step S <b> 309, the image distribution apparatus 100 acquires video from the relay apparatus (router) for each of all six arrangement frames (A to F).
In S310, the image distribution apparatus 100 arranges the video acquired from the relay apparatus (router) for each of all six arrangement frames (A to F).

In step S <b> 311, the image distribution apparatus 100 acquires the address of the relay apparatus (router) for each of all six arrangement frames (A to F) from the address that can identify the received base.
In S <b> 312, the image distribution apparatus 100 generates information (request requested from the wireless terminal) that can be displayed separately for all the six arrangement frames (A to F).
In S313, the image distribution apparatus 100 behaves as follows.

  With respect to the frame determined to distribute the image in S306, the image acquired from the imaging device that has received the image acquisition request from the image distribution device is distributed to the wireless terminal that has received the image distribution request (image distribution means). On the other hand, for the frame determined not to distribute the image in S306, the image acquired from the imaging device is not distributed to the wireless terminal that has received the image distribution request.

  With respect to the frame determined not to distribute the image in S306, the wireless terminal that has received the image distribution request can display the image acquired from the imaging device that has received the image acquisition request from the wireless terminal that has received the image distribution request. Information (request requested from the wireless terminal) is transmitted (image display information transmitting means). On the other hand, with respect to the frame determined to distribute the image in S306, the wireless terminal that has received the image distribution request displays the image to be acquired from the imaging device that has received the image acquisition request from the wireless terminal that has received the image distribution request. No information that can be sent.

The information that can be displayed (request requested from the wireless terminal) includes an address that is necessary for directly acquiring an image and for specifying the base where the imaging device that transmits the image acquisition request is installed. ing.
The information that can be displayed includes a local IP address for specifying the image capturing apparatus itself that requests image acquisition, which is necessary for directly acquiring the image.

  The image display information transmitting unit displays information that enables the wireless terminal to display the image acquired from the imaging device that has received the image acquisition request from the wireless terminal even when it is determined that there is an image to be acquired by the multiple site determining unit. Sending.

  Alternatively, when the image distribution-dedicated application of the wireless terminal stores in the wireless terminal in advance a layout frame (frame) for placing the distributed image as a template, the image distribution apparatus 100 displays the display information ( Only the request from the wireless terminal and the image need be transmitted to the wireless terminal.

Further, in S313, based on information that can be displayed as well as information that can be displayed by the image distribution apparatus 100 from the imaging apparatus and information that can be displayed from the imaging apparatus that has received an image acquisition request from the wireless terminal. You may transmit the frame (frame screen) for arrange | positioning the image acquired from the imaging device in a predetermined position (frame transmission means).
In S314, the wireless terminal receives all data transmitted in S313.

In step S315, the wireless terminal determines whether there is information (request requested from the wireless terminal) that can be displayed in all the transmitted data. If yes (Yes), go to S316. If not (No), the process proceeds to S321.
In S316, the wireless terminal performs processing only for a frame having information that can be displayed. Get the address of the relay device (router).
In S317, the wireless terminal transmits a request to the relay apparatus (router) for each of all six arrangement frames (A to F).
In S318, the wireless terminal acquires video from the relay device (router) for each of all six placement frames (A to F).
In S319, the wireless terminal arranges the images acquired from the relay device (router) separately for all the six arrangement frames (A to F).

  In S320, the wireless terminal displays the screen in the state of FIG. Although it looks like FIG. 12, the acquisition route is as shown in FIG. Compared with FIG. 13, the acquisition (update) speed and interval of 1401 and 1402 are increased.

13, 14, 16, and 17 are real-time video distribution screens displayed by the wireless terminal, which represent the acquisition route of each image distributed to each frame for convenience and the acquisition route is not displayed. There is no problem even if the acquisition route is displayed separately for each image.
In S321, the wireless terminal displays the screen in the state of FIG. It looks like FIG. 12 (or an image distribution dedicated application screen), but the acquisition route is as shown in FIG.
FIG. 9 will be described.

  In S401, the wireless terminal displays the screen in the state of FIG. It is a modification of the screen of FIG. Compared with FIG. 14, a main image 1602 having a large size and a sub image 1603 having a small size are displayed instead of a uniform size of an image (video) arranged in each frame. In step S402, the wireless terminal presses (touches) the sub-image 1603 by a user operation in order to enlarge the image in the sub-image and display it at the position of the main image.

  In step S403, the image distribution apparatus 100 determines whether the frame of the sub image 1603 has been pressed. If it is determined that the frame of the sub-image 1603 has been pressed (Yes), the process proceeds to S403. If it is determined that the frame of the sub-image 1603 has not been pressed (No), the current state is maintained, and the process returns to S401.

  If the image distribution apparatus 100 determines in step S404 that the frame of the sub-image 1603 has been pressed (Yes), the image in the sub-image is enlarged and displayed at the position of the main image (main frame). Control for reducing the image at the position of the sub-image and displaying it at the position of the sub-image (sub-frame) is executed. Control for swapping the determined image acquisition routes for the main frame and the sub frame, respectively, when the image acquisition route determined by the determination in S306 of the image to be distributed is different between the main frame and the sub frame. I do. If it is determined that the frame of the sub-image 1603 has been pressed (Yes) in order to perform control for swapping the image acquisition route, the process returns to step S305 to determine the image acquisition route for each arrangement frame. May be performed again, or the image distribution route may be controlled to be swapped by the image distribution apparatus 100 holding the data of the image acquisition route after being determined in step S305 and subsequent steps.

  In S405, the wireless terminal displays the screen in the state of FIG. By the control of swapping the image acquisition route, the image acquisition route of the main image 1701 acquired by the terminal and the sub image 1702 acquired by the server is swapped as compared with FIG. FIG. 15 will be described.

FIG. 15 shows group data in which a plurality of imaging devices and addresses of bases where the plurality of imaging devices are installed are associated with each other. Stored by the image distribution apparatus 100 (group data storage means).
Reference numeral 1501 denotes a user ID for identifying a user who can log in to the real-time video distribution screen, and corresponds to 1002 in FIG. 10 and 1209 in FIG.

Reference numeral 1001 in FIG. 10 denotes a login screen for user authentication. When the GO button 1004 is pressed, the wireless terminal transmits a user ID and a password 1003 to the image distribution apparatus 100.
Reference numeral 1502 denotes a group ID for identifying a photographing group of a plurality of cameras, and corresponds to 1202 in FIG.
Reference numeral 1503 denotes a number for dividing the six arrangement frames, and A to F correspond to 1203 to 1208 in FIG.
Reference numeral 1504 denotes a base ID for identifying a place (company) where each of the plurality of cameras is installed.
Reference numeral 1505 denotes the address of the relay device at the base where each of the plurality of cameras is installed, and is used for determination in S306.
Reference numeral 1506 denotes a unique ID of each of the plurality of cameras, and is used when specifying a camera.
Reference numeral 1507 denotes the IP address of the local network of each of the plurality of cameras, some of which are duplicated.

  Reference numeral 1508 denotes a further classified place (environment) where each of a plurality of cameras is installed. For example, it is classified into similar categories such as cash register, parking lot, entrance, etc., and videos of the same category are displayed in a list as shown in FIG. can do.

  It should be noted that in a subnetted environment where a plurality of routers are located at the same base, there may be a case where the router is branched into a plurality of branches within the same base. In this case, since it is possible for the wireless terminal and the camera to communicate directly within the same base, it is possible to construct a virtual local environment such as VPN, or group multiple routers within the same base ( By setting group data of a plurality of router addresses in advance, it is possible to transmit a camera image acquisition request from a wireless terminal to a camera via a plurality of routers in a network at the same site.

Further, the program according to the present invention is a program capable of executing the processing method of the flowcharts shown in FIGS. 3, 4, 8, and 9, and the storage medium of the present invention is a program capable of executing the processing method by the computer. Is stored in the external memory.

As described above, a recording medium that records a program that implements the functions of the above-described embodiments is supplied to a system or apparatus, and a computer (or CPU or MPU) of the system or apparatus stores the program stored in the recording medium. It goes without saying that the object of the present invention can also be achieved by executing reading.

In this case, the program itself read from the recording medium realizes the novel function of the present invention, and the recording medium storing the program constitutes the present invention.

As a recording medium for supplying the program, for example, a flexible disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD-R, DVD-ROM, magnetic tape, nonvolatile memory card, ROM, EEPROM, silicon A disk or the like can be used.

Further, by executing the program read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (operating system) operating on the computer based on an instruction of the program is actually It goes without saying that a case where the function of the above-described embodiment is realized by performing part or all of the processing and the processing is included.

Furthermore, after the program read from the recording medium is written to the memory provided in the function expansion board inserted into the computer or the function expansion unit connected to the computer, the function expansion board is based on the instructions of the program code. It goes without saying that the case where the CPU or the like provided in the function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.

The present invention may be applied to a system constituted by a plurality of devices or an apparatus constituted by one device. It goes without saying that the present invention can also be applied to a case where the invention is achieved by supplying a program to a system or apparatus. In this case, by reading a recording medium storing a program for achieving the present invention into the system or apparatus, the system or apparatus can enjoy the effects of the present invention.

Furthermore, by downloading and reading a program for achieving the present invention from a server, database, etc. on a network using a communication program, the system or apparatus can enjoy the effects of the present invention.
In addition, all the structures which combined each embodiment mentioned above and its modification are also included in this invention.

100 Image distribution server (image distribution device)
200 Smartphone (wireless terminal)
201 Network camera (imaging device)
401 CPU
403 RAM
202 Wireless LAN access point 206 Network camera (imaging device)

Claims (10)

An image distribution device that is communicably connected to a wireless terminal and an imaging device and distributes an image captured by the imaging device to the wireless terminal,
Base data storage means for storing base data which is an address of a base where the imaging device is installed;
An accepting unit that accepts an image delivery request including an address that can identify a base that requested delivery of an image captured by the imaging device from the wireless terminal;
Image distribution means for distributing an image acquired from an imaging device that has received an image acquisition request from the image distribution device to a wireless terminal that has received the image distribution request;
Distributes the image acquired from the imaging device that has received the image acquisition request from the image distribution device to the wireless terminal that has received the image distribution request according to the address that can identify the received base and the base address stored in the base data A judgment means for judging whether or not,
If the determination unit determines not to distribute the image, the image acquired from the imaging device that has received the image acquisition request from the wireless terminal that has received the image distribution request to the wireless terminal that has received the image distribution request Image display information transmitting means for transmitting information that can be displayed,
An image distribution apparatus comprising:   The image display information transmitting means transmits the information that can be displayed, and arranges an image acquired from the imaging device based on the information that can be displayed at a predetermined position on the wireless terminal that has received the image distribution request. The image distribution apparatus according to claim 1, further comprising a frame transmission unit that transmits a frame. Group data storage means for storing group data in which a plurality of imaging devices and addresses of bases where the plurality of imaging devices are installed are associated;
A plurality of image receiving means for receiving distribution requests for a plurality of images taken by a plurality of imaging devices from the wireless terminal;
From the image distribution device, a plurality of images to be distributed to the wireless terminal that has received the distribution request for the plurality of images in accordance with the address that can identify the base received by the reception unit and the base address stored in the group data. A plurality of site determination means for determining whether there is an image to be acquired from the imaging device that has received the image acquisition request;
Further comprising
When the image display information transmitting unit further determines that there is an image to be acquired by the plurality of site determining unit, the wireless terminal that has received the multiple image distribution request is the wireless terminal that has received the multiple image distribution request. The image distribution apparatus according to claim 1 or 2, wherein information capable of displaying an image acquired from an imaging apparatus that has received an image acquisition request from a terminal is transmitted.   The displayable information received by the wireless terminal that has received the image distribution request includes the address of the base where the imaging device that makes the image acquisition request is installed in order to directly acquire the image. The image delivery apparatus according to any one of claims 1 to 3, wherein   The displayable information received by the wireless terminal that has received the image distribution request includes a local IP address of the imaging apparatus that makes the image acquisition request in order to directly acquire the image. The image delivery apparatus according to any one of claims 1 to 4.   The network address of a router device acquired when relaying the image distribution request to the image distribution device is an address that can specify a base that requested distribution of an image captured by the imaging device. The image delivery apparatus according to any one of claims 1 to 5.   The image distribution apparatus according to claim 1, wherein the image distribution request received by the reception unit further includes information specifying an imaging apparatus that distributes an image to a wireless terminal. . An image distribution device that is communicably connected to a wireless terminal and an imaging device and distributes an image captured by the imaging device to the wireless terminal,
Base data storage means for storing base data which is an address of a base where the imaging device is installed;
An accepting unit that accepts an image delivery request including an address that can identify a base that requested delivery of an image captured by the imaging device from the wireless terminal;
Image distribution means for distributing an image acquired from an imaging device via the image distribution device to a wireless terminal that has received the image distribution request;
Judgment whether to distribute the image acquired from the imaging device via the image distribution device to the wireless terminal that has received the image distribution request according to the address that can identify the received location and the location address stored in the location data. A judgment means to
When the determination unit determines not to distribute, an image display that transmits information that can display an image acquired from the imaging device without passing through the image distribution device to the wireless terminal that has received the image distribution request. Information transmission means;
An image distribution apparatus comprising: A base data storage unit that is communicably connected to a wireless terminal and an imaging apparatus, distributes an image captured by the imaging apparatus to the wireless terminal, and stores base data that is an address of a base where the imaging apparatus is installed. A method for controlling an image distribution apparatus comprising:
An accepting step in which an accepting unit of the image delivery apparatus accepts an image delivery request including an address that can identify a base that requested delivery of an image captured by the imaging device from the wireless terminal;
An image distribution step in which an image distribution unit of the image distribution apparatus distributes an image acquired from an imaging apparatus that has received an image acquisition request from the image distribution apparatus to a wireless terminal that has received the image distribution request;
The determination unit of the image distribution apparatus receives an image acquisition request from the image distribution apparatus to a wireless terminal that has received the image distribution request according to an address that can identify the received base and a base address stored in the base data. A determination step of determining whether or not to distribute the image acquired from the imaging device;
When the image display information transmitting unit of the image distribution apparatus determines that the determination step does not distribute the image, the wireless terminal that has received the image distribution request is sent to the wireless terminal that has received the image distribution request. An image display information transmitting step for transmitting information capable of displaying an image acquired from an imaging device that has received an image acquisition request;
The control method characterized by including. A base data storage unit that is communicably connected to a wireless terminal and an imaging apparatus, distributes an image captured by the imaging apparatus to the wireless terminal, and stores base data that is an address of a base where the imaging apparatus is installed. A program that can be read and executed by an image distribution apparatus provided
The image delivery device;
An accepting unit that accepts an image delivery request including an address that can identify a base that requested delivery of an image captured by the imaging device from the wireless terminal;
Image distribution means for distributing an image acquired from an imaging device that has received an image acquisition request from the image distribution device to a wireless terminal that has received the image distribution request;
Distributes the image acquired from the imaging device that has received the image acquisition request from the image distribution device to the wireless terminal that has received the image distribution request according to the address that can identify the received base and the base address stored in the base data A judgment means for judging whether or not,
If the determination unit determines not to distribute the image, the image acquired from the imaging device that has received the image acquisition request from the wireless terminal that has received the image distribution request to the wireless terminal that has received the image distribution request Image display information transmitting means for transmitting information that can be displayed,
A program characterized by making it function.

Images