JP6180303B2 - Network video surveillance system - Google Patents

Description

  The present invention relates to a network video monitoring system, and more particularly to a network video monitoring system that facilitates exchange of devices connected to a network.

  Patent Document 1 relates to the setting of various information necessary for a network terminal device. For example, in a management terminal such as a personal computer (PC), centralized setting of various information such as an IP (Internet Protocol) address and the addition of network terminal devices. A network system that simplifies overall management in the case of time is disclosed.

JP 2012-156925 A

Here, a conventional network video monitoring system will be described with reference to FIG.
FIG. 4 is a diagram showing an example of the configuration of a conventional network video monitoring system. In FIG. 4, reference numeral 110 denotes a closed network constructed in the same network space. Reference numeral 120 denotes a factory-shipped surveillance camera newly connected for failure replacement. Reference numeral 130 denotes a central server in the network 110, such as a video recording device or a video management server. Reference numeral 132 denotes camera information of a plurality of surveillance cameras connected to the network 110 and registered in advance in the central server 130. Reference numeral 140 denotes a PC or the like for changing the setting of a monitoring camera such as the monitoring camera 120 according to the system.

  The network 110 is a local network, and the network address is “192.168.10.0/24”. For a plurality of surveillance cameras connected to the network 110, static IP addresses or the like must be appropriately set directly and manually. Although the network 110 may be provided with a DHCP (Dynamic Host Configuration Protocol) server, it is not used for the purpose of dynamically assigning at least an IP address. Such a fixed address operation network 110 is often used in an application that is premised on that there is no change in the network over a long period of time or is required to have high reliability because it is quicker to start and has a stable behavior than dynamic acquisition. Is done. In addition, the central server 130 holds the setting of the distribution method and recording method for each monitoring camera in association with the IP address. Therefore, changing the IP address is inconvenient.

  Moreover, the surveillance camera 120 just connected is in a factory-shipped state, and is initially set with, for example, an IP address “192.168.0.10/24”. The central server 130 tries to continue communication based on the camera information 132, but cannot communicate because the setting of the monitoring camera 120 is not appropriate. The exchange operator connects the PC 140 to the network 110 of the system, sets the address of the PC 140 to, for example, “192.168.10.100/24” in accordance with the address space of the network 110 which is a closed network. Then, connect to the IP address of the monitoring camera 120 and change the monitoring camera 120 to an appropriate setting.

As described above, in the conventional mechanism, after replacing the surveillance camera 120, it is necessary to connect the PC 140 to change / confirm the setting. In addition to troublesome preparation of the PC 140, setting errors are likely to occur, and It was not possible to recover correctly. For example, when there are a plurality of failed devices and they are to be replaced at the same time, an operation such as actually checking with a monitoring camera image whether there is an error in the association with the devices before replacement occurs.
In addition, when a setting error occurs in the replacement work of the monitoring camera, in the worst case, the entire system is affected, and there is a risk that the entire system is stopped from a partial failure state.

  The present invention has been made in view of such conventional circumstances, and based on the camera setting information included in the read two-dimensional code, the surveillance camera newly connected for exchange exchanges information with the central server. It is an object of the present invention to provide a network video monitoring system that can easily perform system restoration work by automatic setting to a network.

  In order to achieve the above object, a network video monitoring system according to the present invention is connected to a monitoring camera connected to a network and the monitoring camera via the network, and manages the network setting information of the monitoring camera. In a network video monitoring system having a server, when a replacement monitoring camera is connected to the network, the replacement monitoring camera exchanges information with the central server, and stores in-camera setting information stored in advance in the memory The format information included in the two-dimensional code read as follows is transmitted to the central server, and the central server receives the network setting information based on the in-camera setting information and the format information received from the replacement monitoring camera. It is characterized by making changes.

  In order to achieve the above object, the network video monitoring system according to the present invention is the above-described network video monitoring system, wherein the replacement monitoring camera is a reading code for recognizing format information included in a two-dimensional code. Recognizing means is provided.

  The network video monitoring system according to the present invention for achieving the above object is the network video monitoring system described above, wherein the format information includes a system code, a type code, a node code, and notification destination designation information. It is characterized by that.

  According to the present invention, a newly connected surveillance camera exchanges information with the central server for exchange, and automatic setting to the network is performed based on the camera setting information included in the read two-dimensional code, It is possible to provide a network video monitoring system capable of easily performing system recovery work.

It is a figure which shows an example of a structure of the network image | video monitoring system which concerns on Embodiment 1 of this invention. It is a block diagram which shows the structure of the surveillance camera of the network video surveillance system which concerns on Embodiment 1 of this invention. It is a sequence diagram of the network setting process of the surveillance camera in the network video surveillance system concerning Embodiment 1 of the present invention. It is a figure which shows an example of a structure of the conventional network image | video monitoring system.

<Embodiment 1>
Hereinafter, a network video monitoring system according to Embodiment 1 of the present invention will be described with reference to FIG. FIG. 1 is a diagram showing an example of the configuration of a network video monitoring system according to Embodiment 1 of the present invention.

[Network video surveillance system configuration]
In FIG. 1, reference numeral 110 denotes a closed network constructed by, for example, a wireless LAN related standard IEEE 802.11. Devices connected to the network 110 have a common address system according to the network address. In other words, the network matches one network address when the (sub) net mask is applied to the IP addresses of all connected devices. Reference numeral 20 denotes a factory-shipped surveillance camera newly connected for failure replacement. Reference numeral 30 denotes a central server in the network 110, such as a video recording device or a video management server. Reference numeral 60 denotes a sheet on which a reading code 61 such as a two-dimensional code is printed. The reading code 61 includes predetermined format information 62 of the monitoring camera 20.

The central server 30 includes a device information table 32 that stores information and states of a plurality of monitoring cameras connected to the network 110, and an exchange entry table 34.
The device information table 32 holds a key value 32a, a MAC address 32b, an IP address 32c, and a flag (Flag) 32d for managing a failure (communication disconnection) state for each device. In the device information table 32 of the present embodiment, the Node number is also used as the key value in the first column. The Node number (key value 32a) is a number of, for example, 1 to 15 associated with the monitoring camera 20 (or its installation location) on a one-to-one basis, and is easier for a person to understand than the IP address itself.
The central server 30 grasps an IP device such as the monitoring camera 20 connected to the network 110 by a method to be described later, and if there is a device in a failure (communication disconnection) state, records it with a flag 32d.

Next, a specific configuration of the monitoring camera 20 will be described with reference to FIG.
FIG. 2 is a block diagram illustrating a configuration of the monitoring camera of the network video monitoring system according to the first embodiment of the present invention.
The monitoring camera 20 includes an optical system 21 for optically photographing an object, video data captured by the optical system 21 into digital data, and a video processing unit 22 that analyzes the video data, and a central server 30. A network interface controller (NIC) 27 for transmitting a request from the CPU 24 and returning a response from the CPU 24 to the central server 30; a RAM 25 for temporarily storing video data digitized by the video processing unit 22; A flash memory 26 for storing the network settings of the surveillance camera, a CPU 24 for controlling these components, a mode display unit 23 comprising, for example, an LED for discriminating and displaying the network setting mode / normal mode, and a video processing unit 22 has a switch (not shown) for turning on / off the network setting function. .
In addition, the video processing unit 22 includes a read code recognition unit 22a for reading a read code such as a two-dimensional code.
Note that reference numeral 28 in FIG. 1 denotes in-camera setting information of the monitoring camera 20 and is stored in the flash memory 26. 1 is a table for storing read code information read by the read code recognition means 22 a of the video processing unit 22, and is stored in the flash memory 26.

[Network setting processing of network video surveillance system]
Next, network setting processing of the monitoring camera 20 in the network video monitoring system will be described with reference to FIG.
FIG. 3 is a sequence diagram of network setting processing of the monitoring camera in the network video monitoring system according to the first embodiment of the present invention.
First, the in-camera setting information 28 of the monitoring camera 20 newly connected for failure replacement is “0.0.0” in which the status 28a is “0000” and the IP address 28b is undecided in the factory shipment state. .0 ”and the MAC address 28c has a unique value“ 00-00-00-00-00-10 ”.
When the monitoring camera 20 detects that a changeover switch (not shown) is turned on while the CPU 24 is running, the monitoring camera 20 shifts to the network setting mode, the display of the mode display unit 23 switches to the network setting mode, and is connected to the network 110 (step S101). ).
When connected to the network 110, the monitoring camera 20 transmits its own in-camera setting information 28 to a broadcast address (for example, “255.255.255.255”) using a predetermined protocol (step S102). . The in-camera setting information 28 is transferred to the entire network (broadcast domain) 110 and reaches the central server 30.

The central server 30 analyzes the in-camera setting information 28 received in step S102 (step S103). Since there is no match in the device information table 32 with the MAC address indicated by the in-camera setting information 28, the central server 30 does not store the information. The device is registered in the replacement entry table 34 as a grasping device (step S104).
When registered in the exchange entry table 34, the central server 30 sends a migration command for setting the status to “0001” to the MAC address indicated by the in-camera setting information 28 (“00-00-00-00-00-10”). Transmission is performed according to a predetermined protocol (step S105), and the status of the exchange entry table 34 is also set to "0001", and the entry preparation state is entered. The destination IP address of the migration command is a broadcast address.
The monitoring camera 20 that has received the transition command in step S105 shifts the status to “0001” (step S106), and transmits a response indicating the transition to the central server 30 (step S107). The response content may be in-camera setting information 28 including the status that has shifted to “0001”. Further, it is desirable to use the MAC address and IP address of the central server 30 found by the reception in step S105 as the destination of the response.
If the monitoring camera 20 cannot receive the transition command (step S105) from the central server 30 to the status “0001” after the first broadcast even after a predetermined time has elapsed, it notifies the in-camera setting information 28 again. If the central server 30 is not reached even after several retries, the notification is stopped. At this time, the monitoring camera 20 may use the mode display unit 23 to display a notification of communication failure using an LED or the like.

When the monitoring camera 20 shifts the status of the in-camera setting information 28 to “0001” in step S106, the monitoring camera 20 activates the reading code recognition unit 22a of the video processing unit 22 to set the two-dimensional code reading state (step S108). At this time, the monitoring camera 20 may be provided with a notification function for notifying the reading state with an LED or the like in the mode display unit 23.
Here, the worker holds the sheet 60 on which the reading code 61 such as a two-dimensional code is printed over the viewing angle of the monitoring camera 20 (step S109).
As shown in FIG. 1, the reading code 61 of the sheet 60 includes information of a system code 62a, a type code 62b, a node code 62c, and a notification destination designation 62d as format information 62. For example, when a QR code (registered trademark) is used as the reading code 61, binary data of 2953 bytes can be formed. The system code 62a is for detecting erroneous connection of surveillance cameras for different systems, and is managed with a unique value for each system. The type code 62b is a code for arbitrarily managing the device type and the system sub-classification. The node code 62c is information for uniquely specifying an IP device (at least a monitoring camera) in the system (network 110). Note that the reading code 61 may be displayed by using a mobile terminal or the like to display the code received remotely on the screen of the mobile terminal. In addition, there is a method in which the information of the format information 62 is not plain text in advance but is converted into a two-dimensional code by using a code in a state of being scrambled for encryption.
The monitoring camera 20 reads the reading code 61 and stores the information in the reading information storage table 29 (step S110). If the notification destination designation 29d of the read information storage table 29 is other than “FF.FF.FFFF” (some significant IP address is set), the information in the read information storage table 29 is sent to the notification destination. When the notification is made (step S111) and the notification destination designation 29d is “FF.FF.FFFF”, the information in the camera setting information 28 and the information in the reading information storage table 29 are notified by a predetermined protocol.

  When the central server 30 receives the setting information 28 in the camera and the information in the reading information storage table 29 in step S111, the central server 30 determines whether the system code 29a and the type code 29b in the reading information storage table 29 are compatible (step S112). If it matches, the flag 32d in the device information table 32 is referred to, and a camera that currently needs a fault replacement is confirmed. For example, if the flag 32d is “0” and it is an exchange target, it is verified whether the node code 29c matches the exchange target. In addition, when it conforms in step S112, it refers to the IP address of the device information table 32 and notifies the monitoring camera 20 of new setting information (IP address and netmask), and also the status of the monitoring camera 20 Is changed to “0010” (step S113).

When the monitoring camera 20 receives new setting information, the monitoring camera 20 changes the status of the in-camera setting information 28 to “0010”, and then starts the setting change (step S114). When the setting change is started, the status of the in-camera setting information 28 is set to “0110” and notified to the central server 30 again (step S115).
The central server 30 retries when the change notification to the status “0110” in step S115 cannot be received for a certain period of time.

The monitoring camera 20 changes the setting based on the new setting information received in step S113, sets the status of the camera setting information 28 to “1000”, and flushes the information in the camera setting information 28 and the reading information storage table 29. The program is saved in the memory 26 and restarted (step S116).
After restarting, the monitoring camera 20 notifies the in-camera setting information 28 of Status “1000” by broadcast communication (step S117).
Upon receiving the notification in step S117, the central server 30 updates the registered status 34b of the corresponding MAC address 34a in the exchange entry table 34 to “1000”, and the source IP address and Node number are changed to the device information table 32. It is confirmed whether or not they match those in the corresponding MAC address (step S118). If they match, test communication such as ping is performed with the monitoring camera 20 using the IP address (step S119).
When the test communication is completed, the central server 30 updates the MAC address 32b of the corresponding node number 32a in the device information table 32, normalizes the flag 32d to “1”, and deletes it from the replacement entry table 34. (Step S120).

The monitoring camera 20 sets a connectable upper limit time in the statuses “0001” to “0110”, and returns “0000”, that is, returns to the initial state when the time has elapsed. Further, even after the status becomes “1000”, the initial state is returned according to some situation such as communication failure.
The central server 30 may perform log storage or external notification as a failure when there is an abnormality flag in the flag 32 d of the device information table 32 or there are entries that remain in the replacement entry table 34.
The monitoring camera 20 may be configured to determine the status of each setting state using an LED or the like.
Further, in the case of a system that can communicate with the outside, the reading code 61 of the above-described sheet 60 can be generated by the central server 30 and sent to a mobile terminal registered in advance.

  According to the present embodiment, since the status of the monitoring camera 20 is managed by the central server 30, the reading code recognition unit 22 a is activated by the monitoring camera alone and the reading code 61 is read due to a malfunction or erroneous setting of the monitoring camera. There is no state. Further, since the read code 61 only includes Node information and the like, and the IP address is not directly expressed, the confidentiality of the IP address can be maintained, and an illegal IP address can be intentionally set in the monitoring camera. I can prevent it. Even if the reading code 61 is mistaken, the central server 30 performs collation using the flag 32d, Node information, etc., so that an IP address is not assigned to a device that has not failed.

In the description of the present embodiment, the IP address of the monitoring camera 20 remains undecided in steps S102, S105, S107, S110, and S113, but before starting step S101, AutoIP (RFC (Request For Comment) 3927 ) Etc. may be used.
Steps S102, S105, S107, S110, S113, S115, and S117 include a DHCP (Dynamic Host Configuration Protocol) or BOOTP (Bootstrap Protocol) message format specified by RFC 2131, and an LLMNR specified by RFC 4795. (Link-local Multicast Name Resolution) Header format can be used. For the status notification, a 4-octet Xid (transaction ID) field is assigned to the former, and 4 bits in a 16-bit ID field are assigned to the latter.

  As described above, according to the network video surveillance system according to the first embodiment of the present invention, the camera setting newly included in the two-dimensional code read and exchanged with the central server is exchanged with the central server for exchange. By automatically setting the network based on the information, it is possible to provide a network video monitoring system that can easily perform system recovery work.

  Note that the configuration and operation of the above-described embodiment are examples, and it is needless to say that the configuration and operation can be appropriately changed and executed without departing from the gist of the present invention.

20: surveillance camera, 21: optical system, 22: video processing unit, 22a: read code recognition means, 23: mode display unit, 24: CPU, 25: RAM, 26: flash memory, 27: NIC, 28: in camera Setting information, 28a: Status, 28b: IP address, 28c: MAC address, 29: Reading information storage table, 29a: System code, 29b: Type code, 29c: Node code, 29d: Notification destination designation, 30: Central server, 32: Device information table, 32a: Key value, 32b: MAC address, 32c: IP address, 32d: Flag, 34: Exchange entry table, 34a: MAC address, 24b: Status, 60: Sheet, 61: Reading code, 62 : Format information, 62a: System code, 62b: Type code 62c: node code, 62d: notification destination specified, 110: network 120: surveillance camera 130: central server, 132: camera information, 140: PC.

Claims (3)

In a network video surveillance system comprising: a surveillance camera connected to a network; and a central server that is connected to the surveillance camera via the network and manages network setting information of the surveillance camera.
When a replacement surveillance camera is connected to the network,
The exchange monitoring camera exchanges information with the central server, and transmits the format information included in the read two-dimensional code to the central server, and the internal setting information stored in the memory in advance.
The network image monitoring system, wherein the central server changes the network setting information based on the in-camera setting information and the format information received from the replacement monitoring camera.   2. The network video monitoring system according to claim 1, wherein the replacement monitoring camera includes a read code recognition unit for recognizing format information included in the two-dimensional code. 3. The network video monitoring system according to claim 1, wherein the format information includes a system code, a type code, a node code, and notification destination designation information.