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System and method for rapidly recognizing access camera

A camera and fast technology, applied in transmission systems, character and pattern recognition, instruments, etc., can solve problems such as long search time and large safety hazards, and achieve the effect of reducing time complexity

Active Publication Date: 2019-03-08
HANGZHOU INFOGO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The present invention provides a system and method for quickly identifying and accessing cameras in view of the disadvantages of long search time and high potential safety hazards in the prior art

Method used

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  • System and method for rapidly recognizing access camera
  • System and method for rapidly recognizing access camera
  • System and method for rapidly recognizing access camera

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, a system for quickly identifying access cameras, including an onvif broadcast detection module, an onvif directional detection module and an alarm module;

[0034] The onvif broadcast detection module is used to send onvif broadcasts to all ip addresses in the LAN, and identify the ip addresses that do not return the device service address as non-camera devices and send out alarm information;

[0035] The onvif directional detection module detects the ip address of the cross-network segment according to the unicast message of the onvif protocol, generates an onvif rule tree, and performs matching and identification of the matching rules of the root node;

[0036] The alarm module is configured to receive alarm messages and send them to the server.

[0037] It also includes a complexity calculation module, according to the response time of all LANs after the broadcast sent by the onvif broadcast detection module, according to the onvif directi...

Embodiment 2

[0042] Such as figure 1 As shown, a method for quickly identifying an access camera includes the following steps:

[0043] Send onvif broadcast to all IP addresses in the LAN, and identify the IP addresses that do not return the device service address as non-camera devices and send out alarm information;

[0044] According to the unicast message of the onvif protocol, the ip address across the network segment is detected, an onvif rule tree is generated, and the matching rules of the root node are matched and identified.

[0045] It also includes an alarm step for receiving the alarm message and sending it to the server.

[0046] The matching rule is: if the root node matches, continue to recursively match the child nodes until the leaf node is matched; if the root node or the leaf node does not match during the matching process, send an alarm message to the alarm step.

Embodiment 3

[0048] Such as figure 2 and image 3As shown, a system for quickly identifying access cameras, including two onvif broadcast detection modules, onvif directional detection modules and an alarm module;

[0049] 2 onvif broadcast detection modules O B1 , O B2 Placed in designated 2 Class B segments B 1 , B 2 Among them, it is used to perform broadcast polling detection on two Class B segments with an interval of 5s, which can quickly identify whether there is a camera counterfeiting event among the 65535 ip addresses in the local area network;

[0050] 1 onvif directional detection module O p1 , placed in any position reachable to the detected network route, according to the unicast message of the onvif protocol, the ip addresses of all reachable network segments are detected at a period of 5s, and a 4-layer onvif rule tree is generated, and the matching delay is <1s ;

[0051] One alarm module, which is an alarm server, is used to receive alarm messages from two onvif b...

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Abstract

The invention relates to the technical field of internet of things security, and discloses a system for rapidly recognizing an access camera. The system is characterized by comprising an onvif broadcast detection module, an onvif directional detection module and an alarm module; the onvif broadcast detection module is used for sending an onvif broadcast to all ip addresses in a local area network,identifying the IP addresses which are not returned to equipment service addresses as non-camera equipment, and sending out alarm information; the onvif directional detection module is used for detecting the ip address of a cross-network segment according to a unicast message of an onvif protocol, generating an onvif rule tree, and carrying out matching identification on matching rules of a rootnode; and the alarm module is used for receiving an alarm message and sending the alarm message to a server. Compared with a type identification scheme implemented by using a nmap and a sniffer for inquiry, attribute data more than that obtained by the nmap and the sniffer can be inquired, and the time complexity is at least reduced by multiple times, so that the security risk of counterfeiting the camera to perform access by the non-camera equipment can be found quickly.

Description

technical field [0001] The invention relates to the technical field of Internet of Things security, in particular to a system and method for quickly identifying and accessing a camera. Background technique [0002] The Internet of Things has become a hot spot in the current network development, and the Internet of Things network composed of cameras is an important part of public safety and national security. Since most cameras are installed and run in an open environment, the physical interface connected to the network is often unattended, and it is easy for external devices to directly invade the network through the interface. For example, an external PC only needs to be changed to the same ip and mac address as the camera to connect to the network and access various data on other cameras, including calling sensitive video data, accessing and downloading video data, etc. [0003] The existing technical solution to the above problems is the terminal type identification syst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08G06K9/62
CPCH04L63/10H04L67/12G06F18/24323
Inventor 罗治华何俊
Owner HANGZHOU INFOGO TECH
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