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Network video recorder (NVR) and automatic IPC (Internet Protocol Camera) access method thereof

A network video and automatic access technology, applied in closed-circuit television systems, electrical components, transmission systems, etc., can solve problems such as difficulty in adding

Active Publication Date: 2015-05-20
ZHEJIANG UNIVIEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a network video recorder and its method for automatically connecting to the IPC, so as to avoid the problem that the IP address of the IPC in the network cannot be modified and it is difficult to add it to the NVR, and it is convenient for users to deploy a video surveillance network

Method used

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  • Network video recorder (NVR) and automatic IPC (Internet Protocol Camera) access method thereof
  • Network video recorder (NVR) and automatic IPC (Internet Protocol Camera) access method thereof
  • Network video recorder (NVR) and automatic IPC (Internet Protocol Camera) access method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: The case of a single network card, that is, the NVR has only one network card. After receiving the response message from IPC3, the NVR determines that the IP address of IPC3 is not in the same network segment as its own IP address, and then selects an IP address within the same network segment (172.168.1.2~171.168.1.254) of IPC3 , such as 172.168.1.30, the NVR continuously pings the IP address. If the ping is different (no response reaches the preset number of times), the IP address is considered to be available, and the IP address is added as a virtual IP to the NVR's network card. Communication with IPC3 is performed through this virtual IP address. If the ping is successful, change another IP and continue to ping until a suitable virtual IP is found, or an allocated IP management information table is established, and an idle IP query is performed to find an unused IP address as a virtual IP, which will not be repeated here.

Embodiment 2

[0047] Embodiment 2: The situation of multiple network cards, that is, the NVR has multiple network cards. Different from Embodiment 1, for the case of multiple network cards, since the NVR has multiple network cards such as network card 1 and network card 2, the IP address of network card 1 is 192.168.1.10, but the IP address of network card 2 is 172.168.1.10. In this case, for the received response message, first compare the IP address of the IPC that sent the response message with the IP addresses of each network card to see if there is a network card in the same network segment as the IPC, if there is only one network card If the IP address and the IP address of the IPC are in the same network segment, the IPC and the network card are bound; if the IP addresses of multiple network cards and the IP address of the IPC are in the same network segment, the binding on each network card Determine the number of IPCs, perform load balancing, and select the network card with the le...

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Abstract

The invention discloses a network video recorder (NVR) and an automatic IPC (Internet Protocol Camera) access method thereof. The NVR comprises a device discovery module, a network configuration module and a configuration management module. The method comprises the steps: sending an ARP (Address Resolution Protocol) broadcast message, and receiving response messages fed back from all IPCs, wherein the response messages carry own IP (Internet Protocol) addresses of the IPCs, subnet masks and port numbers; judging whether the IP address of each IPC sending the corresponding response message and the IP address of an own network card of the corresponding IPC are located in the same network segment or not according to the received IPC response messages, and going to next step if the IP address of each IPC sending the corresponding response message and the IP address of the own network card of the corresponding IPC are located in the same network segment; adding a virtual IP address, which is located in the same network segment of the IP address of each IPC sending the corresponding response message, to the own network card of the corresponding IPC if the IP address of each IPC sending the corresponding response message and the IP address of the own network card of the corresponding IPC are not located in the same network segment, binding the corresponding IPC and the added virtual IP address to the corresponding own network card, and going to the next step; adding corresponding IPCs in a unicast mode. According to the NVR and the automatic IPC access method thereof, the access of the IPCs which do not support IP modification is subjected to IP removal, and the IPCs and the NVR can be in interconnected use in a zero configuration manner.

Description

technical field [0001] The invention belongs to the technical field of video surveillance, and in particular relates to a network video recorder and a method for automatically accessing IPC thereof. Background technique [0002] Video surveillance is an important part of the security system. Video surveillance is widely used in many occasions because of its intuitive, accurate, timely and rich information content. In recent years, with the rapid development of computer, network and image processing and transmission technology, the popularization trend of video surveillance has become more and more obvious. Deploying video surveillance systems based on IP networks has become the most commonly used networking method, such as figure 1 In the video surveillance system shown, both the network video recorder NVR and the IP camera IPC are connected to the same egress router. Users can access the client under the egress router to view the video images of each IPC. Connect the term...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18H04L29/08H04L29/12
Inventor 张磊孙令亮
Owner ZHEJIANG UNIVIEW TECH CO LTD
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