CN104883547A - IPC access method based on physical port of network access equipment, and NVR - Google Patents
IPC access method based on physical port of network access equipment, and NVR Download PDFInfo
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Abstract
The invention discloses an IPC access method based on a physical port of network access equipment, and an NVR. The method comprises the steps: adding physical port information of the PIC-access network access equipment in a DHCP message or an ONVIF response message, thereby analyzing the physical port information of IPC access after the above information is received by the NVR; searching an IPC channel record according to the analyzed physical port information; inheriting the IPC channel record and enabling the IPC channel record to serve as the IPC channel record of the IPC if there is the IPC channel record corresponding to the physical port information, or else, building a new IPC channel record corresponding to the physical port information, thereby managing accessed IPC according to the IPC channel record. The NVR comprises an analytical module and a channel record maintenance module. The method and NVR facilitate the implementation of the IPC management, and reduce the configuration workload of IPC installation and replacement.
Description
Technical field
The invention belongs to technical field of video monitoring, particularly relate to method and the NVR of a kind of access device physical port access IPC Network Based.
Background technology
Video monitoring is the important component part of safety and protection system, and video monitoring is directly perceived with it, accurately, timely and the information content is abundant and be widely used in many occasions.In recent years, along with the develop rapidly of computer, network and image procossing, transmission technology, the universalness trend of video monitoring is more and more obvious, and more and more trends towards adopting IP Video Supervision Technique to substitute traditional analog video monitoring technique.
In the prior art, the application being accessed IPC by network video recorder NVR is more and more general, NVR can automatic acquisition IPC IP address and be saved in IPC channel information, then NVR is automatically by this IPC of ONVIF agreement access-in management, user is follow-up revises the Video coding of IPC and the configuration parameters such as storage plan of recording a video, and operation supervise and control business.
But after former IPC fault is replaced, user starts automatic search function, find that new equipment then obtains the facility information of new equipment by ONVIF, if equipment Serial Number is not in NVR already present IPC passage record, a then newly-increased IPC passage record, as equipment Serial Number exists, then refresh the IP address in the IPC passage record of original equipment sequence number place.But due to equipment Serial Number and the former IPC of the new equipment after changing inconsistent, NVR can think that a new IPC accesses, and by increase IPC record, instead of upgrades former IPC passage record.At this moment as the storage video recording of former IPC need be retained, then can not delete the passage record of former IPC, and need to specify to newly-increased IPC channel hand storage plan of newly recording a video.As other configuration informations such as the coding of former IPC will be retained, also craft in new IPC passage record is needed to be modified as consistent with former IPC, and the two passes record of cause barrier IPC and newly-increased IPC in NVR, can be there is, there are two video recording storage plan, the business such as user operation fact, playback are inconvenient.Time NVR memory space does not have vacant, the storage video recording that cause can only be hindered IPC also needs to retain is deleted, the new IPC after residual memory space just can be had to distribute to replacement, causes planning that the video recording in the retention phase can not retain.
Meanwhile, a lot of user has just formed a lot of use habit from the analog video monitoring epoch, and as wished, the access of web camera IPC can associate with switch physical port, and access procedure reduces human configuration process as far as possible.But in prior art when IPC fault is replaced, it is very inconvenient to operate, and Consumer's Experience is poor.
Summary of the invention
The object of this invention is to provide method and the NVR of a kind of access device physical port access IPC Network Based, to avoid the technical problem of prior art IPC replacement operation complexity, for user provides good experience.
To achieve these goals, technical solution of the present invention is as follows:
A method of access device physical port access IPC Network Based, be applied to the network access equipment of access network video camera IPC, described IPC be linked into network and be linked into network video recorder NVR, described IPC cut-in method comprises step:
The physical port information of the network access equipment that described IPC accesses is inserted in the first message received, after receiving described first message to make described NVR, parse described physical port information, then IPC passage record is searched according to described physical port information, if there is the IPC passage record that described physical port information is corresponding, then inherit the IPC passage record of this IPC passage record as this IPC, otherwise newly-built one to should the passage record of IPC of physical port information.
A kind of implementation of the present invention, described first message comprises DHCP request message and DHCP response message, inserting the physical port information of the network access equipment that described IPC accesses, comprising step in described the first message receiving:
The DHCP request message that this IPC sends is received from the physical port of the described IPC of access;
The physical port information that described IPC accesses is inserted in described DHCP request message;
The first message that described NVR receives is DHCP response message, and described DHCP response message is sent after receiving described DHCP request message by Dynamic Host Configuration Protocol server, comprises the physical port information that described IPC accesses in described DHCP response message.
Another kind of implementation of the present invention, described first message is the ONVIF response message from described IPC, described ONVIF response message is that described IPC responds ONVIF that described NVR sends and obtains facility information message and the ONVIF response message that sends, and described method comprises step:
The ONVIF response message that this IPC sends is received from the physical port of the described IPC of access;
In described ONVIF response message, insert the physical port information that described IPC accesses, after receiving the ONVIF response message of described IPC to make described NVR, parse described physical port information.
Further, described physical port information comprises the port numbers of network access equipment access IPC, specifically comprises node identification, frame number/ether port type/groove number/pilot trench/port numbers and vlan number.
The invention allows for a kind of method of access device physical port access IPC Network Based, be applied to network video recorder NVR, web camera IPC is linked into network and is linked into network video recorder NVR by described network access equipment, and described IPC cut-in method comprises step:
The physical port information that described IPC is linked into network access equipment is parsed from the first message received, then IPC passage record is searched according to described physical port information, if there is the IPC passage record that described physical port information is corresponding, then inherit the IPC passage record of this IPC passage record as this IPC, otherwise newly-built one to should the passage record of IPC of physical port information.
The present invention proposes the NVR of a kind of access device physical port access IPC Network Based simultaneously, and for the web camera IPC being linked into network access equipment being linked into network and being linked into video cassette recorder NVR, described NVR comprises:
Parsing module, for parsing the physical port information that described IPC is linked into network access equipment from the first message received;
Passage record maintenance module, physical port information for parsing according to described parsing module searches IPC passage record, if there is the IPC passage record that described physical port information is corresponding, then inherit the IPC passage record of this IPC passage record as this IPC, otherwise newly-built one to should the passage record of physical port information IPC.
The method of the access device physical port access IPC a kind of Network Based that the present invention proposes and NVR, in DHCP request message, the physical port information that IPC accesses is inserted by network access equipment, or in ONVIF response message, insert the physical port information that IPC accesses, NVR can parse physical port information wherein, and select original IPC passage record according to the IPC of this physical port information for access or set up new IPC passage record, thus the IPC after replacement can be identified by network access equipment physical port information, the channel configuration information of the former IPC of IPC self reusing of new replacement, ensure that IPC coding parameter before and after replacement, video recording storage waits the continuity of monitoring parameter or business.Meet user and automatically add a new IPC demand, reduce human configuration workload.
Accompanying drawing explanation
Fig. 1 is the method flow diagram that the present invention is based on network access equipment physical port access IPC;
Fig. 2 is the two network interface networking schematic diagram of the embodiment of the present invention one NVR;
Fig. 3 is the embodiment of the present invention two NVR mono-network interface networking schematic diagram;
Fig. 4 is the NVR structural representation that the present invention is based on network access equipment physical port access IPC.
Embodiment
Be described in further details technical solution of the present invention below in conjunction with drawings and Examples, following examples do not form limitation of the invention.
The application being accessed IPC by network video recorder NVR is more and more general, NVR can automatic acquisition IPC IP address and be saved in IPC passage record, then NVR is automatically by this IPC of ONVIF agreement access-in management, user is follow-up revises the Video coding of IPC and the configuration parameters such as storage plan of recording a video, and operation supervise and control business.In small-sized video surveillance network, NVR and IPC is directly linked on the router of user, and router has DHCP function simultaneously; And in the video surveillance network with more IPC, usually needing multiple network access equipment to access IPC, network access equipment and NVR are all linked into router, and router carries DHCP or has access to Dynamic Host Configuration Protocol server.
The network access equipment that the present invention accesses for IPC does not limit, and for small-sized video surveillance network, the network access equipment that IPC directly accesses is router, then physical port information is the physical port information of the router of IPC access.And when being switch for the network access equipment that IPC directly accesses, then physical port information is the physical port information of the switch of IPC access.Below in an example, take switch as the network access equipment that IPC directly accesses be example, the physical port information based on switch is described.
As shown in Figure 1, the method that the present invention is based on network access equipment physical port access IPC comprises step:
S1, network access equipment insert the physical port information of the network access equipment of IPC access in the first message received, and forward this first message;
After S2, NVR receive this first message, parse physical port information, then IPC passage record is searched according to physical port information, if there is the IPC passage record that this physical port information is corresponding, then inherit the IPC passage record of this IPC passage record as this IPC, otherwise newly-built one to should the passage record of IPC of physical port information.
The method that the present invention is based on network access equipment physical port access IPC is set forth below by way of two embodiments:
The access of IPC under the two network interface networking model of embodiment one, NVR support, the first message comprises DHCP request message and DHCP response message.
When NVR supports two network interface, the switch at a network interface access IPC place of NVR, another network interface access DHCP Server place router.As shown in Figure 1, IPC1, IPC2 are linked into switch, and the network interface 1 of NVR1 is connected with switch, the enable DHCP Relay of switch, and the network interface 2 of another NVR is linked into the router at DHCP Server place, and router can built-in or plug-in DHCPServer.
When new IPC access switch physical port, IPC is unified obtains IP address by DHCP Server, when IPC sends DHCP request (DHCP Request) broadcasting packet, after switch receives this message, the switch physical port information containing IPC access is added in the option 82 of Request message, clean culture sends to DHCP Server, message is forwarded to DHCP Server by NVR, DHCP Server is IPC distributing IP, DHCP ACK is replied in clean culture, ACK message is forwarded to the switch of IPC access by NVR, NVR intercepts DHCP mutual message on network card chip, switch physical port that IPC uses is obtained and Dynamic Host Configuration Protocol server distributes to the IP address of IPC from DHCP ACK message, NVR inquires about the IPC passage recorded information of having added, and if there is not the IPC passage of this switch physical port, then a newly-increased IPC passage record, comprises the information such as switch physical port, IP address, and by this IPC of the automatic connection management of ONVIF agreement.
When IPC fault need be replaced, new IPC accesses the switch physical port of former IPC, and the process that new IPC obtains IP address process by DHCP obtains IP address with former IPC by DHCP is consistent; DHCP Server may distribute a new IP, after the DHCP ACK back message of DHCP Server is listened to by NVR, obtain wherein switch physical port and IP address information, NVR inquires about the IPC passage recorded information of having added, as having the IPC passage recorded information of this switch ports themselves, then new IP address is updated in this IPC passage record, inherits former IPC channel configuration information, the IPC newly accessed by new IP address management.
As shown in Figure 2, switch configuration virtual interface address is 192.168.0.254, and the next hop address of allocating default static routing is 192.168.0.1, opens DHCP Relay, specifies its DHCP Server to be 192.168.1.254.NVR supports two network interface, and network interface 1 address is 192.168.0.1, and network interface 2 address configuration is 192.168.1.2, and the gateway of network interface 2 is set to 192.168.1.1.
Then the access procedure of IPC is as follows, is described for IPC1:
IPC1 access switch physical port 1, IPC1 initiates DHCP request.Switch receives the DHCP Request broadcasting packet sent from IPC1 from port one, add option 82, the positional information of IPC1 is identified at the sub-option sub-option 1 of option 82, namely two floor port numbers of DHCP message and No. vlan is received: node identification+frame number/ether port type/groove number/pilot trench/port numbers+vlanID, as switch1_0/eth/1/0/1_vlan1.
The message clean culture of above-mentioned interpolation option 82 is forwarded to DHCPServer through the two network interface of NVR by switch, DHCP Server is the information such as IPC1 distributing IP address, mask, gateway, respond DHCPACK unicast message to DHCP relay equipment and switch, message comprises DHCP network configuration information and option 82 information, if the address distributing to IPC1 is 192.168.0.2/24, gateway 192.168.0.1.
Because the message of all DHCP Relay and DHCP Server all will forward between the network interface 1 of NVR and network interface 2, NVR can intercept DHCP message, find that there is the DHCP ACK message of DHCP Server response to DHCP Relay, then from message, obtain the information such as the IP address of IPC, access switch physical port number.
Why from DHCP ACK message, parse switch physical port number information, because can also obtain DHCP from DHCP ACK message is the IP address that this IPC distributes, thus can the disposable all information getting needs.In addition when DHCP request does not meet with a response, if parse switch physical port number information from DHCP Request message, but DHCP does not respond, also can cause NVR cannot normal management replace IPC, therefore the present embodiment is from DHCPACK message, parse switch physical port number information, can prevent DHCP request from not meeting with a response, and situation about leading to the failure.
The mode that unicast message is transferred to broadcasting packet by the DHCP Relay of switch is again sent to IPC1, and IPC1 obtains wherein for the information such as IP address, mask, gateway carry out configuration network parameter.
NVR automatically attempt with ONVIF agreement to obtain IPC IP address initiate connect, as successful connection, then add an IPC passage, comprise get IPC IP address, switch physical port number information.User can for parameters such as this IPC passage configuration codes information, video recording storage plan, the monitoring business such as operate with live, playback.
The IPC channel information noted down in NVR is as table 1:
Table 1
At IPC1 because fault cannot use, user purchases new IPC and replaces, and is assumed to be IPC1 ', and user is by IPC1 ' access switch physical port 1, then IPC1 ' access procedure is as follows:
Dhcp process is initiated after IPC1 ' powers on, with the access procedure of aforementioned IPC1, suppose that the IP address that DHCP distributes to IPC1 ' is 192.168.0.3, after NVR listens to the DHCPACK message of DHCP Server, parse switch physical port number wherein, IP address information, then search the passage that whether there is this switch physical port number information in existing IPC passage, as existing, the IP address then upgrading this IPC passage is 192.168.0.3, as table 2:
Table 2
NVR adopts the IP address of 192.168.0.3 to be connected and managing I PC1 ' by ONVIF agreement, keeps the continuity of the business such as the video recording storage of former IPC passage.
The access of IPC under the mono-network interface networking model of embodiment two, NVR, the first message is ONVIF response message.
When NVR only has a single network interface, the switch at the network interface access IPC place of NVR, switch is connected with DHCP Server place router.As shown in Figure 3, IPC3, IPC4 are linked into switch, and the network interface of NVR1 is connected with switch, and switch is also linked into the router at DHCP Server place simultaneously, or the built-in or plug-in DHCP Server of switch itself.
The present embodiment intercepts the ONVIF protocol massages between IPC and NVR in exchange function, and amendment ONVIF obtains the corresponding message of IPC of facility information message, adds the switch physical port information that this IPC accesses wherein; After NVR receives this ONVIF message, obtain switch physical port information wherein, NVR inquires about the IPC passage recorded information of having added, if there is not the IPC passage recorded information of this switch physical port, newly-increased IPC passage recorded information, IPC passage recorded information comprises the IP address of IPC, access switch physical port and other channel informations; Have the IPC passage recorded information of this switch ports themselves as found, then thought to carry out equipment fault replacing, new IP address is updated in this IPC passage record.
Then the access detailed process of IPC is as follows, is described for IPC3:
Obtained and the network informations such as configuration of IP address by DHCP after IPC3 access, NVR, by the existing automatic discovery technique of ONVIF, gets access URL and the IP address information of IPC3.NVR obtains the switch ports themselves information of IPC3 access, and use ONVIF to obtain facility information method and obtain facility information message to IPC3 transmission, IPC3 responds ONVIF facility information to NVR, and content is as follows:
<tds:GetDeviceInformationResponse><tds:Manufacturer>UNIVIEW</tds:Manufacturer><tds:Model>IPC1</tds:Model><tds:FirmwareVersion>IPC-B0002LJ01</tds:FirmwareVersion><tds:SerialNumber>210235T0AC314B000075</tds:SerialNumber><tds:HardwareId>IPC1</tds:HardwareId></tds:GetDeviceInformationResponse>
Switch receives the ONVIF response message obtaining facility information from port one after, resolve and the switch physical port information of interpolation IPC3 access wherein, be then transmitted to NVR, following italics is the information of adding.
<tds:GetDeviceInformationResponse><tds:Manufacturer>UNIVIEW</tds:Manufacturer><tds:Model>IPC1</tds:Model><tds:FirmwareVersion>IPC-B0002LJ01</tds:FirmwareVersion><tds:SerialNumber>210235T0AC314B000075</tds:SerialNumber><tds:HardwareId>IPC1_switch1_0/eth/1/0/1_vlan1</tds:HardwareId></tds:GetDeviceInformationResponse>
NVR obtains IP address, the switch physical port information of IPC3 from response message, as found the IPC passage without this switch physical port information, then increases newly; As there is the IPC passage of this switch physical port, then by IP address flush in this IPC passage record, and to be visited and managing I PC by new IP.
Embodiment two and embodiment one technical scheme difference are: switch can resolve ONVIF apparatus information acquiring and response message, and add the switch physical port information of IPC access wherein; NVR does not need to intercept DHCP message; NVR can resolve the physical port information in the ONVIF device discovery response message of switch transmission.
NVR is after learning the physical port information corresponding to IPC, its subsequent operation is identical with embodiment one, if there is not the IPC passage recorded information of this switch physical port, newly-increased IPC passage recorded information, IPC passage recorded information comprises the IP address of IPC, access switch physical port and other channel informations; Have the IPC passage recorded information of this switch ports themselves as found, then thought to carry out equipment fault replacing, new IP address is updated in this IPC passage record, inherit the IPC passage record of this IPC passage record as this IPC.
In sum, two embodiments that the present invention provides respectively describe: when NVR can receive DHCP ACK message, resolve and obtain physical port information from DHCP ACK message; And when NVR cannot receive DHCP ACK message, from ONVIF response message, obtain physical port information.It is easily understood that when embodiment one, the method for embodiment two also can be adopted, from ONVIF response message, obtain physical port information, realize the IPC access of access device physical port Network Based.
As shown in Figure 4, based on said method, the NVR of a kind of access device physical port access IPC Network Based of the present invention, comprising:
Parsing module, for parsing the physical port information that IPC is linked into network access equipment from the first message received;
Passage record maintenance module, physical port information for parsing according to parsing module searches IPC passage record, if there is the IPC passage record that this physical port information is corresponding, then inherit the IPC passage record of this IPC passage record as this IPC, otherwise newly-built one to should the passage record of IPC of physical port information.
It should be noted that, described first message comprises DHCP request message and DHCP response message, network access equipment inserts the physical port information of the network access equipment of IPC access in DHCP request message, Dynamic Host Configuration Protocol server sends DHCP response message after receiving DHCP request message, comprise the physical port information of IPC access in DHCP response message, parsing module parses the physical port information that IPC is linked into network access equipment from DHCP response message.Or described first message is the ONVIF response message from IPC, NVR sends ONVIF and obtains facility information message, IPC sends ONVIF response message after receiving this ONVIF acquisition facility information message, network access equipment inserts the physical port information of IPC access in described ONVIF response message, and parsing module parses the physical port information that IPC is linked into network access equipment from ONVIF response message.
Above embodiment is only in order to illustrate technical scheme of the present invention but not to be limited; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the present invention.
Claims (12)
1. a method of access device physical port access IPC Network Based, be applied to described network access equipment, described IPC be linked into network and be linked into network video recorder NVR, it is characterized in that, described method comprises step:
The physical port information of the network access equipment that described IPC accesses is inserted in the first message received, after receiving described first message to make described NVR, parse described physical port information, then IPC passage record is searched according to described physical port information, if there is the IPC passage record that described physical port information is corresponding, then inherit the IPC passage record of this IPC passage record as this IPC, otherwise newly-built one to should the passage record of IPC of physical port information.
2. method according to claim 1, is characterized in that, described first message comprises DHCP request message and DHCP response message, inserting the physical port information of the network access equipment that described IPC accesses, comprising step in described the first message receiving:
The DHCP request message that this IPC sends is received from the physical port of the described IPC of access;
The physical port information that described IPC accesses is inserted in described DHCP request message;
The first message that described NVR receives is DHCP response message, and described DHCP response message is sent after receiving described DHCP request message by Dynamic Host Configuration Protocol server, comprises the physical port information that described IPC accesses in described DHCP response message.
3. method according to claim 1, it is characterized in that, described first message is the ONVIF response message from described IPC, described ONVIF response message is that described IPC responds ONVIF that described NVR sends and obtains facility information message and the ONVIF response message that sends, and described method comprises step:
The ONVIF response message that this IPC sends is received from the physical port of the described IPC of access;
In described ONVIF response message, insert the physical port information that described IPC accesses, after receiving the ONVIF response message of described IPC to make described NVR, parse described physical port information.
4. the method according to the arbitrary claim of claim 1-3, is characterized in that, described physical port information comprises node identification, frame number/ether port type/groove number/pilot trench/port numbers and vlan number.
5. the method for an access device physical port access IPC Network Based, be applied to network video recorder NVR, web camera IPC is linked into network and is linked into network video recorder NVR by described network access equipment, it is characterized in that, described method comprises step:
The physical port information that described IPC is linked into described network access equipment is parsed from the first message received, then IPC passage record is searched according to described physical port information, if there is the IPC passage record that described physical port information is corresponding, then inherit the IPC passage record of this IPC passage record as this IPC, otherwise newly-built one to should the passage record of IPC of physical port information.
6. method according to claim 5, it is characterized in that, described first message comprises DHCP request message and DHCP response message, described network access equipment inserts the physical port information that described IPC accesses in described DHCP request message, described DHCP response message is sent after receiving described DHCP request message by Dynamic Host Configuration Protocol server, the physical port information that described IPC accesses is comprised in described DHCP response message, the physical port information that described IPC is linked into network access equipment is parsed described the first message from receiving, parse the physical port information that described IPC is linked into network access equipment from described DHCP response message.
7. method according to claim 5, it is characterized in that, described first message is the ONVIF response message from described IPC, described NVR sends ONVIF and obtains facility information message, described IPC sends ONVIF response message after receiving this ONVIF acquisition facility information message, described network access equipment inserts the physical port information that described IPC accesses in described ONVIF response message, the physical port information that described IPC is linked into described network access equipment is parsed described the first message from receiving, for parsing the physical port information that described IPC is linked into described network access equipment from the ONVIF response message received.
8. the method according to the arbitrary claim of claim 5-7, is characterized in that, described physical port information comprises node identification, frame number/ether port type/groove number/pilot trench/port numbers and vlan number.
9. a NVR of access device physical port access IPC Network Based, web camera IPC is linked into network and is linked into network video recorder NVR by described network access equipment, it is characterized in that, described NVR comprises:
Parsing module, for parsing the physical port information that described IPC is linked into network access equipment from the first message received;
Passage record maintenance module, physical port information for parsing according to described parsing module searches IPC passage record, if there is the IPC passage record that described physical port information is corresponding, then inherit the IPC passage record of this IPC passage record as this IPC, otherwise newly-built one to should the passage record of IPC of physical port information.
10. NVR according to claim 9, it is characterized in that, described first message comprises DHCP request message and DHCP response message, described network access equipment inserts the physical port information that described IPC accesses in described DHCP request message, described DHCP response message is sent after receiving described DHCP request message by Dynamic Host Configuration Protocol server, the physical port information that described IPC accesses is comprised in described DHCP response message, the physical port information that described IPC is linked into network access equipment is parsed described the first message from receiving, parse the physical port information that described IPC is linked into network access equipment from described DHCP response message.
11. NVR according to claim 9, it is characterized in that, described first message is the ONVIF response message from described IPC, described NVR sends ONVIF and obtains facility information message, described IPC sends ONVIF response message after receiving this ONVIF acquisition facility information message, described network access equipment inserts the physical port information that described IPC accesses in described ONVIF response message, the physical port information that described IPC is linked into described network access equipment is parsed described the first message from receiving, for parsing the physical port information that described IPC is linked into described network access equipment from the ONVIF response message received.
12. NVR according to claim 9-11, is characterized in that, described physical port information comprises node identification, frame number/ether port type/groove number/pilot trench/port numbers and vlan number.
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