JP2019046448A - Imaging device, client device, method, and program - Google Patents

Abstract

An object of the present invention is to properly perform network setting in an apparatus having a plurality of network interfaces.
An imaging apparatus capable of communicating with another apparatus using a network interface is configured to be in the same subnet when setting is made such that a plurality of network interfaces included in the imaging apparatus belong to the same subnet. Outputs information indicating that settings to which multiple network interfaces belong have been made.
[Selected figure] Figure 1

Description

  The present invention relates to control technology for network connection between an imaging device having a plurality of network interfaces and a client device.

  In recent years, surveillance systems using network cameras have become widespread. Among such network cameras, there are network cameras having a wireless LAN function. When the network camera has a wireless communication function such as a wireless LAN, the wiring necessary for the installation can be simplified. Such a network camera may have not only a wireless LAN network interface but also a wired LAN network interface. However, if one device has two network interfaces, the convenience may be degraded. In Patent Document 1, control is performed such that only one interface responds to a request signal with respect to a problem that one device is recognized as two devices by having a plurality of network interfaces. It has been described that.

JP, 2007-199827, A

  On the other hand, in an apparatus having a plurality of network interfaces, it may be useful to communicate in parallel utilizing each network interface. However, the convenience may be lost depending on the network setting.

  The present invention has been made in view of the above problems, and provides a technology that enables appropriate network setting in an apparatus having a plurality of network interfaces.

  An imaging apparatus according to an aspect of the present invention is an imaging apparatus capable of communicating with another apparatus using a network interface, and a plurality of network interfaces included in the imaging apparatus are set to belong to the same subnet. In this case, an output unit is provided that outputs information indicating that the setting in which a plurality of network interfaces belong to the same subnet has been performed.

  According to the present invention, it is possible to appropriately perform network setting in an apparatus having a plurality of network interfaces.

A figure showing an example of composition of a system. The figure which shows the structural example of a network camera. The figure which shows the structural example of an information terminal. The figure which shows the outline | summary of the process which a network camera performs. The figure which shows the example of the detection process of the change of the information of a network interface. The figure which shows the example of the information for the use avoidance of the same subnet, and the use avoidance technique. The figure which shows the example of the pop-up notification for avoiding use of the same subnet. The figure which shows the example of the same subnet use avoidance process by an external application. The figure which shows the example of the structure which avoids use of the same subnet which considered the power supply type.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(System configuration)
FIG. 1 shows an example of the configuration of a system according to the present embodiment. The present system relates to a monitoring system using a network camera 101, and includes a network camera 101, an access point 102, an information terminal 103, and a router 104. In these devices, the wired network 105 and the wireless network 106 are configured. In addition, in order to simplify the description, an example in which one device exists is shown, but a plurality of devices may exist. For example, a plurality of network cameras 101 may be dispersedly installed at different positions in order to image a wide area.

  The network camera 101 is a camera having a plurality of network interfaces (hereinafter referred to as “NW interface”) so that communication can be performed in a wired LAN and a wireless LAN using the wired communication function and the wireless communication function. The network camera 101 has a terminal function of connecting to the access point 102 as a terminal of a wireless LAN as a wireless communication function. The access point 102 performs wireless communication with a device having a terminal function of a wireless LAN, such as the network camera 101. The information terminal 103 is an information processing apparatus having a function of outputting and controlling information of the network camera 101 using an application such as a browser, for example. The user can, for example, launch a setting screen via the information terminal 103 and manually execute the setting regarding the NW interface of the network camera 101 from the setting screen. The information terminal 103 may be, for example, a general-purpose processor such as a personal computer (PC), a memory such as a RAM and a ROM, a storage device such as an HDD, and a communication circuit via a wired LAN. The information terminal 103 can acquire information from the network camera 101 through, for example, a communication circuit or a portable storage medium, and can execute processing for predetermined control of the network camera 101. The router 104 operates as a default gateway of at least the network camera 101 and the access point 102 and has a DHCP function of allocating an IP address to each of these devices. The wired network 105 is, for example, a network such as a wired LAN using a wired circuit such as a cable, which is used to transmit an image captured by the network camera 101 to an external recording server or the like. The wired network 105 may include, for example, a wireless section in part. The wireless network 106 is a network such as a wireless LAN that does not involve a wired line such as a cable for wireless communication between the network camera 101 and the access point 102.

  In the configuration as described above, the network camera 101 can be connected in parallel to the wired LAN and the wireless LAN. For example, a video recorded in peace is transmitted by a wired LAN in which communication is stable, while an unspecified user such as a visitor can not view a camera by a wireless LAN using an access point installed at an event hall or the like. Communication may be conducted to temporarily monitor the video. Thus, the network camera having a plurality of NW interfaces can operate the system flexibly and in a wide range of applications by simultaneously using the plurality of NW interfaces. Furthermore, for example, while transmission of recorded video needs to be restricted with high security, primary monitoring needs to be made on the network, such as it needs to be disclosed so that unspecified event visitors can communicate. Requirements may vary. In such a case, each of the plurality of NW interfaces may be set to belong to another subnet for appropriate setting for each network.

  However, in such a network camera 101, for example, a problem may occur at the time of initial setting of the camera.

  Many network cameras do not have abundant panels or buttons for controlling the camera on the camera side, are connected to the network at the time of initial setting, and detailed settings are performed by an external information processing apparatus via the network. There is often a need to be As an initial setting method, for example, there is a method in which an application called a VMS (Video Management System) for controlling and managing a camera is installed and used on a client device that communicates with a network camera. There is also a method of accessing the setting page of the network camera and setting the camera by directly inputting the IP address of the network camera into a browser or the like. In either method, it is necessary to have a configuration to know the IP address of the network camera, and a generally commercially available VMS has a camera search function. The camera search function detects a network camera existing on the network by transmitting a request (discovery command) by broadcast on the network to which the client device belongs and confirming the response (response).

  Here, a case is considered where a network camera having a plurality of NW interfaces exists on the network, and the respective NW interfaces belong to the same subnet. In this case, the network camera returns a response to each request from the client device through each NW interface. Therefore, an application such as VMS may erroneously detect one network camera as a plurality of network devices. In addition, since the network camera receives control commands from the client device by each of the plurality of NW interfaces, convenience may be degraded such as duplication of internal processing or omission of processing.

  For this reason, in the present embodiment, the network camera 101 having a plurality of NW interfaces monitors setting information of the respective NW interfaces, and executes processing for avoiding parallel use when the same is set to the same subnet. To do. As a result, it is possible to prevent the convenience from being degraded when a plurality of NW interfaces of one network camera belong to the same subnet. Hereinafter, the configuration of the network camera 101 that executes such processing and an example of the processing to be performed will be described. The network camera 101 is an example, and the following discussion can be applied to a network device having a plurality of NW interfaces.

(Device configuration)
FIG. 2 shows a configuration example of the network camera 101. In one example, the network camera 101 includes an imaging unit 201, an image processing unit 202, a system control unit 203, a storage unit 204, a wired communication processing unit 205, and a wireless communication processing unit 206. Note that the configuration of FIG. 2 is merely an example of the configuration of the network camera 101, and various modifications such as addition of a configuration (not shown) or deletion or modification of the configuration shown may be performed.

  The imaging unit 201 includes a lens and an imaging element, and performs imaging of an object and conversion into an electrical signal. The image processing unit 202 performs image processing and compression encoding processing on the electric signal converted by the imaging unit 201, and generates image data. The system control unit 203 analyzes the command transmitted to the camera, and executes processing according to the command. The system control unit 203 also detects changes in parameters in the network camera 101, and executes processing using the detection operation as an event trigger. The storage unit 204 stores setting values such as image quality adjustment parameters and network settings. In one example, the storage unit 204 is a non-volatile storage device capable of holding information even when the power of the network camera 101 is turned off. For example, the storage unit 204 is set before when the network camera 101 is restarted. It is possible to start using the specified value. The storage unit 204 may be, for example, a memory such as a ROM or a RAM, but may be configured to include any other storage device. Also, the image processing unit 202 and the system control unit 203 can be realized by a processor such as a CPU or an MPU executing a program stored in the storage unit 204, for example. The image processing unit 202 and the system control unit 203 may be configured by dedicated hardware, for example, or may be configured using a program corresponding to a programmable circuit such as an FPGA (field programmable gate array). . The wired communication processing unit 205 performs processing of network communication by wired LAN. The wired communication processing unit 205 includes, for example, a circuit that performs modulation / demodulation of a signal transmitted by a wired LAN, and an interface circuit that sends a signal to a wired line or receives a signal from the wired line. The wireless communication processing unit 206 performs processing of network communication by wireless LAN. For example, the wireless communication processing unit 206 converts a baseband signal into a radio frequency signal and transmits the signal through an antenna, or receives a radio frequency signal through an antenna. And a circuit for converting into a baseband signal.

  The structural example of the information terminal 103 is shown in FIG. The information terminal 103 has a configuration similar to that of a general-purpose PC, and includes, for example, a CPU 301, a ROM 302, a RAM 303, a storage device 304, a wired communication unit 305, and a display unit 306. The information terminal 103 executes processing for controlling the network camera 101 by executing a program stored in the ROM 302, for example. The RAM 303 is used, for example, as a work memory in the process. For example, a setting screen for setting the network camera 101 can be displayed on the display unit 306. The display unit 306 may be built in the information terminal 103, or a display outside the information terminal 103 may be used. When an external display is used, the information terminal 103 may have a display control unit instead of the display unit 306. Further, the information terminal 103 acquires information from the network camera 101 via, for example, the wired communication unit 305, and is stored in, for example, the RAM 303 or the storage device 304. The information terminal 103 can execute processing for controlling the network camera 101 based on the acquired information.

(Flow of processing)
First, an outline of the flow of processing performed by the network camera 101 will be described using the example in FIG. 4.

  In this process, the system control unit 203 first determines whether a change has been detected in the information of the NW interface (S401). Here, the determination as to whether or not there is a change in the information of the NW interface may be, for example, as to whether or not network information such as an IP address corresponding to the NW interface is about to be changed. Details of this detection process will be described later. While the system control unit 203 does not detect a change in the information of the NW interface (NO in S401), the system control unit 203 repeatedly executes monitoring and detection processing whether there is a change in the information of the NW interface. On the other hand, the system control unit 203 advances the process to S402 in response to the detection of the change in the information of the NW interface (YES in S401).

  In step S402, the system control unit 203 identifies a subnet in the wired communication processing unit 205 and the wireless communication processing unit 206. For example, the system control unit 203 acquires the IP address and the subnet mask in each communication processing unit as network information, and specifies the subnet. However, the present invention is not limited to this, and the subnet may be identified using other information or by other methods. For example, information on subnets corresponding to each communication processing unit may be stored in advance in the storage unit 204, and the system control unit 203 may acquire information on those subnets from the storage unit 204. In addition, when a plurality of addresses are allocated to one NW interface, such as an IPv6 address, the system control unit 203 specifies subnets for all the addresses. However, the system control unit 203 does not include the link local address in the identification target of the subnet, and may set only the global address as the identification target.

  Thereafter, the system control unit 203 compares the information of the subnets of the plurality (two) of the NW interfaces identified in S402, and determines whether the wired communication processing unit 205 and the wireless communication processing unit 206 belong to the same subnet. It is determined (S403). Then, if the wired communication processing unit 205 and the wireless communication processing unit 206 belong to the same subnet (YES in S403), the system control unit 203 proceeds to S404, otherwise (NO in S403). The process returns to S401.

  In step S404, the system control unit 203 generates, within the camera, avoidance information for avoiding that the wired communication processing unit 205 and the wireless communication processing unit 206 are set in the same subnet or used in the same subnet. Do. The system control unit 203 outputs, for example, an error log message to the non-volatile memory. Information may be generated in any area as long as the user can refer to the execution of the avoidance process, for example, whether or not the above-mentioned avoidance information is generated by the value of a predetermined register of the network camera 101 It may be possible to determine whether or not. Also, the medium from which the above information is output may not be present inside the network camera 101. For example, in addition to or instead of the medium inside the network camera 101, an external such as a non-volatile memory card etc. Information may be generated on the medium of For example, when the network camera 101 and the information terminal 103 can not communicate via the network, the user removes and reads the memory card inserted in the network camera 101 to confirm avoidance information such as an error log and the like. can do. In this manner, the user can grasp the situation in which a plurality of NW interfaces possessed by the network camera 101 are connected to the same subnet by confirming the avoidance information according to the situation. Thus, the user performs an operation to avoid the wired communication processing unit 205 and the wireless communication processing unit 206 being set in the same subnet or being used in the same subnet based on the generated information. be able to.

  Here, regarding the change of the information of the NW interface determined in S401, an example of the detection process will be described using FIG. The change in the information of the NW interface in the network camera 101 to be detected is, for example, a change in the operating IP address which causes the subnet to which it belongs to change. It should be noted that the IP address here may be other network information that may cause a change of subnet. The change of the IP address may be caused by the dynamic assignment of the IP address by the connected DHCP server or the manual setting of the IP address by the user. Therefore, first, the system control unit 203 manually sets the IP address to the NW interface using the DHCP function of the router 104 or the user manually using the information terminal 103 from the setting screen. It is determined whether the method is to be performed (S501). If the system control unit 203 determines that automatic allocation by the DHCP function is to be used (YES in S501), the system control unit 203 requests and acquires information on the IP address notified by the DHCP function from the NW interface. Then, the system control unit 203 saves the acquired information of the IP address as the information of the IP address to be set from now (S502). In the following, the information of the IP address which is about to be set will be referred to as “setting schedule information”. On the other hand, when the system control unit 203 determines that the manual setting method is used from the setting screen (NO in S501), the system control unit 203 acquires information on the IP address input on the setting screen UI, and the IP address Are stored as setting schedule information (S503).

  Thereafter, the system control unit 203 acquires, from the wired communication processing unit 205 or the wireless communication processing unit 206, information on the IP address currently set for the NW interface (S504). Then, the system control unit 203 determines whether the IP address saved as the setting schedule information in S502 or S503 matches the currently set IP address acquired in S504 (S505). If the system control unit 203 determines that the pieces of information match (YES in S505), the processing in FIG. 5 ends. That is, when the conclusion is obtained that there is no change in the information of the NW interface to be monitored, the processing is ended without outputting any judgment result. On the other hand, when the system control unit 203 determines that these pieces of information are different (NO in S505), it determines that it has detected that there is a change in the information of the NW interface (S506). In step S401, the system control unit 203 determines that the information change of the NW interface is detected in response to the process proceeding to step S506.

  In addition, the process example of FIG. 5 is only an example, and another method capable of detecting a change in the information of the NW interface may be used. For example, when the information of the NW interface of the wired communication processing unit 205 or the wireless communication processing unit 206 is changed, the system control unit 203 may notify the change of the information of the NW interface using a monitorable flag.

  The process in FIG. 5 is started, for example, when the system control unit 203 is notified that the IP address of the NW interface of the wired communication processing unit 205 or the wireless communication processing unit 206 has been set. sell. If the IP address here is both IPv4 and IPv6, the system control unit 203 can execute the processing of FIG. 5 in response to at least one of the settings being performed. Even if the IP address is set, the same IP address as the IP address before setting may be set as a result. In this case, it may be determined that the information of the NW interface has not changed. Please keep in mind. The process of FIG. 5 may be executed when the setting of the IP address is not performed. For example, the system control unit 203 may periodically acquire information from the NW interface and execute the process of FIG. 5. Also, for example, the process in FIG. 5 may be executed in response to a trigger given by the user via the information terminal 103, for example.

  Subsequently, an example of the information generated in S404 and an operation of avoiding the setting / use of the corresponding same subnet will be described with reference to FIG. As shown in the table 600 shown in FIG. 6, in one example, the avoidance information and the avoidance operation may be determined according to the method of changing the information of the NW interface.

  For example, when the change of the information of the NW interface is not due to the user operation such as the automatic setting by the DHCP function, the setting of the NW interface can be performed when the user is not operating the setting screen. For this reason, the notification to the user may be performed by e-mail, for example, regardless of the setting screen. This e-mail includes, for example, information on the change in the information of the NW interface and a confirmation request to the user as to whether or not to accept the change in the information of the NW interface. Here, the system control unit 203 does not confirm the change of the information of the NW interface until the user responds to the confirmation request of the notification mail to acknowledge. That is, when the IP address setting of the NW interface is changed by DHCP, the IP address in the unset state after being received from DHCP is not validated unless there is approval from the user. Note that the system control unit 203 performs processing for automatically enabling only one NW interface among a plurality of NW interfaces belonging to the same subnet based on preset information as another avoidance operation. Good. For example, in many cases, the network camera 101 is required to have stable communication, such as constantly recording and distributing, and since wired communication is generally more stable than wireless communication, only the wired communication processing unit 205 is effective. And the wireless communication processing unit 206 may be invalidated. Also, the network camera 101 may automatically enable or disable the setting for the NW interface, not the NW interface itself. That is, the network camera 101 can effectively invalidate at least a part of the NW interface by performing control such that the NW interface itself is valid but the setting is invalid.

  In addition, when the information of the NW interface is changed through the setting screen by the user operation, the user is operating the setting screen, and the system control unit 203 displays a pop-up in the setting screen as shown in FIG. Can be executed. This pop-up display can be a display for not setting so that a plurality of NW interfaces belong to the same subnet as shown in FIG. Note that the display in FIG. 7 is an example, and it can be replaced by any content that can be transmitted to the user that setting can not be made such that a plurality of NW interfaces belong to the same subnet. For example, in FIG. 7, information is presented by a character string, but it may be notified that setting can be made such that a plurality of NW interfaces belong to the same subnet by displaying a predetermined icon. Note that information may be displayed on a window opened as a setting screen, or another window for information display may be opened. Furthermore, for example, by means of audio from a speaker, information may be presented indicating that settings can not be made such that a plurality of NW interfaces belong to the same subnet. In addition, it may be displayed that the setting is performed such that a plurality of NW interfaces belong to the same subnet, and the user's operation as to whether or not the setting is accepted may be received.

  Further, the avoidance operation may be performed by an external application incorporated in the information terminal 103 such as the VMS, instead of the avoidance only by the processing inside the network camera 101 in the monitoring system. Note that settings for a plurality of network cameras 101 on the same network can be performed collectively by an external application.

  An example of the avoidance operation in the setting from the external application will be described with reference to FIG. First, the external application transmits a network information setting request to one or more network cameras 101 via the network (S801). In response to the setting request, the network camera 101 sets network information, and transmits log information regarding the setting of the network information to an external application as a response to the setting request. If the network camera 101 has set the network information before receiving the setting request, the network camera 101 can transmit log information on the set network information to the external application. For example, when the error log is stored in the non-volatile memory, the network camera 101 transmits information including the error log to the external application.

  The external application acquires log information from each network camera 101 as a response to the setting request transmitted in S801 (S802), and determines whether an error log is detected in the acquired log information (S803). If the external application detects an error log (YES in step S803), the process advances to step S804. If no error log is detected (NO in step S803), all the cameras are normally set. We assume processing and finish. In step S804, the external application transmits a cancellation request for canceling (disabling) the network setting made to the camera that has detected the error log, and can not perform the setting by displaying the screen or the like. Notify the user. Note that the external application requests to invalidate at least a part of the settings for the plurality of NW interfaces, for example, to enable only the settings for one of the plurality of NW interfaces belonging to the same subnet. It may be sent. This allows the external application to execute settings to prevent multiple NW interfaces of the network camera from being set in the same subnet or used in the same subnet. Also, the external application may transmit a request for disabling or enabling the NW interface itself for at least a part of the NW interface of the network camera.

  In addition, the process shown in FIG. 8 is an example, and another method executed by an external application for avoiding that a plurality of NW interfaces are set in the same subnet or used in the same subnet is used. May be For example, the network camera 101 may hold the network setting according to the setting request in S801 as an unconfirmed setting, and may fix the network setting when the cancellation request from the external application is not received for a predetermined period. . Also, the external application may transmit a message for determining the network setting to the network camera 101 which has not detected the error log. In this case, for example, the network camera 101 holds the network setting according to the setting request in S801 as an unconfirmed setting, and cancels the unfixed network setting when the message is not received for a predetermined period. It is also good. Further, the information terminal 103 may display a screen as shown in FIG. 7 and wait for a user operation to prevent a plurality of NW interfaces from belonging to the same subnet.

  Also, the network camera 101 can use a Power over Ethernet Plus (PoE) hub as a power source. PoE + is a standard of Ethernet (registered trademark) that performs communication and power supply with one LAN cable. In PoE +, information is collected by periodically transmitting packet data to a multicast address using a protocol called Link Layer Discovery Protocol (LLDP). Then, when communication by LLDP can not be performed, power supply from PoE + is interrupted. For this reason, the network camera 101 needs to perform an operation for avoiding the use of the same subnet while ensuring the communication when PoE + is used in consideration of the connected power source type.

  An example of the avoidance operation in consideration of the power supply type will be described with reference to FIG. Here, as an avoidance operation, it is assumed that only one of the NW interfaces belonging to the same subnet is validated, and restrictions such as invalidation are performed for the other NW interfaces.

  First, the system control unit 203 determines whether the NW interface selected as the restriction target is a wired LAN (S901). If the system control unit 203 determines that the NW interface is a wired LAN (YES in step S901), the system control unit 203 advances the process to step S902. On the other hand, when the system control unit 203 determines that the NW interface to be used is not a wired LAN (NO in S901), since PoE + is not used, the communication by the NW interface is interrupted (S904). In step S902, the system control unit 203 determines whether the network camera 101 is powered by PoE +. If the system control unit 203 determines that the network camera 101 is powered by PoE + (YES in step S902), the process advances to step S903. On the other hand, when the system control unit 203 determines that the network camera 101 is not supplied with power by PoE + (NO in S902), the communication by the NW interface is cut off (S904). The determinations in S901 and S902 may be performed in parallel. In step S903, the system control unit 203 interrupts communication in the upper layer above the IP layer while keeping communication in the lower layer below the data link layer valid. Since LLDP operates in the data link layer, the process of S 903 can maintain the fed state without affecting the transmission of LLDP packet data. On the other hand, since communication in the upper layer above the IP layer is blocked, it can be avoided that the NW interface subject to restriction is used in the same subnet as the NW interface subject to non-restriction.

  Note that the process illustrated in FIG. 9 is an example, and other processes for avoiding the use of a plurality of NW interfaces in the same subnet while the state of supplying power to the network camera 101 is maintained may be used. Good. For example, when a plurality of NW interfaces are set in the same subnet, processing is performed such that the NW interface used to transfer LLDP packet data is preferentially activated and the other interfaces are invalidated. May be In addition, when the network camera 101 has another power supply source such as for backup at the time of a power failure, the user may be notified to switch the power supply method, and the power supply method may be switched to shut off the communication of the NW interface. .

  If the user recognizes that a plurality of NW interfaces are set to belong to the same subnet, the user changes the subnet to which any one of the NW interfaces belongs, for example, by changing the access point of the wireless LAN connection destination. Processing can be performed. According to this, since the plurality of NW interfaces belong to different subnets, it is possible to perform the network setting that can effectively use the plurality of NW interfaces. Also, in some cases, the user may allow multiple NW interfaces to belong to the same subnet. In this case, the network camera 101 may be configured to communicate with one NW interface, for example, with respect to data such as a control command of the camera that should not cause duplicate communication. For example, the network camera 101 can be configured to transmit and receive control commands and transmit captured images by a wired communication interface, and to transmit only captured images by a wireless communication interface.

  Thus, according to the present embodiment, when a plurality of NW interfaces included in one network camera belong to the same subnet, the network is configured in an unintended form by outputting that effect. It can prevent. Also, in particular, when a plurality of NW interfaces of one device should not belong to one subnet, for example, at least a part of the NW interfaces can not be automatically invalidated or such setting can not be performed. Users can be notified of that. This makes it possible to perform appropriate network settings as required by the user.

<Other Embodiments>
The present invention supplies a program that implements one or more functions of the above-described embodiments to a system or apparatus via a network or storage medium, and one or more processors in a computer of the system or apparatus read and execute the program. Can also be realized. It can also be implemented by a circuit (eg, an ASIC) that implements one or more functions.

  101: network camera, 102: access point, 103: information terminal, 104: router, 105: wired network, 106: wireless network, 201: imaging unit, 202: image processing unit, 203: system control unit, 204: storage unit , 205: wired communication processing unit, 206: wireless communication processing unit, 301: CPU, 302: ROM, 303: RAM, 304: storage device, 305: wired communication unit, 306: display unit

Claims (21)

An imaging apparatus capable of communicating with another apparatus using a network interface, the imaging apparatus comprising:
The imaging apparatus has an output unit that outputs information indicating that the setting in which the plurality of network interfaces belong to the same subnet is performed when the setting is performed such that the plurality of network interfaces in the imaging device belong to the same subnet ,
An imaging device characterized by It comprises means for invalidating at least a part of the plurality of network interfaces or at least a part of the settings based on at least the information.
The imaging device according to claim 1, The imaging device has means for validating only one of a plurality of network interfaces configured to belong to the same subnet.
The imaging device according to claim 1 or 2, characterized in that: The process of enabling only one of the plurality of network interfaces is automatically performed when the setting is not manually performed by the user.
The imaging device according to claim 3, characterized in that: At least a part of the plurality of network interfaces or at least a part of the settings is invalidated further based on a request from the outside of the imaging device.
The imaging device according to claim 2, characterized in that: The output unit outputs an electronic mail for notifying the user of the information.
The imaging device according to claim 1, And a means for activating the setting in response to acceptance of the user's approval for the email.
The imaging device according to claim 6, The output unit outputs the e-mail when the setting is not manually performed by a user.
The imaging device according to claim 6 or 7, characterized in that: The output unit causes the information to be displayed on a setting screen for setting a network interface of the imaging device.
The imaging device according to claim 1, The output means causes the information to be displayed on the setting screen when the setting is manually performed by a user.
The imaging device according to claim 9, characterized in that: Means for monitoring whether or not any setting of the plurality of network interfaces has been performed, and determining whether the plurality of network interfaces will belong to the same subnet when the setting is performed. Have,
The imaging device according to any one of claims 1 to 10, characterized in that: The monitoring is performed by periodically acquiring information on settings of the plurality of network interfaces,
The image pickup apparatus according to claim 11, characterized in that: The monitoring is performed based on notification from the plurality of network interfaces that setting has been performed.
The image pickup apparatus according to claim 11, characterized in that: The plurality of network interfaces include network interfaces for wireless communication and wired communication.
The imaging device according to any one of claims 1 to 13, characterized in that: Acquisition that acquires information indicating that multiple network interfaces possessed by the imaging device belong to the same subnet, output from the imaging device that can communicate with other devices using the network interface Means,
An execution unit that executes processing for avoiding the plurality of network interfaces belonging to the same subnet based on at least the information;
A client device characterized by having: The execution means transmits a request for canceling the setting to the imaging device.
The client device according to claim 15, characterized in that: The execution means displays on the screen that the setting can not be performed when the setting is manually performed by the user through the screen displayed by the client device.
The client device according to claim 15, characterized in that: A method performed by an imaging device capable of communicating with another device using a network interface, the method comprising:
And outputting the information indicating that the setting in which the plurality of network interfaces belong to the same subnet is performed when the setting is made such that the plurality of network interfaces included in the imaging device belong to the same subnet.
A method characterized by A method performed by the client device,
A step of acquiring information output from an imaging apparatus capable of communicating with another apparatus using a network interface and indicating that a plurality of network interfaces of the imaging apparatus belong to the same subnet; When,
Executing a process for avoiding the plurality of network interfaces belonging to the same subnet based on at least the information;
A method characterized in that it comprises:   The program for functioning a computer as each means which the imaging device of any one of Claim 1 to 14 has.   The program for functioning a computer as each means which the client apparatus of any one of Claims 15-17 has.

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