System, method and apparatus for adaptive video surveillance over power lines
First Claim
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1. A surveillance network node comprising:
- (a) a power line modem;
(b) a second modem;
(c) a first switch for selecting one of the power line modem and the second modem for a transmission of surveillance information;
(d) a second switch for selecting one of the power line modem and the second modem from which to receive remote information; and
(e) a computer usable medium having computer readable code means embodied therein comprising instructions for;
(i) measuring information relating to the power line modem and the second modem through the second switch; and
(ii) based on the measured information from (i);
(A) selectively signalling the first switch to select one of the power line modem and the second modem for transmission of surveillance information and(B) selectively signalling the second switch to select one of the power line modem and the second modem for receiving remote information.
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Abstract
Video surveillance systems have special requirements with respect to networking and remote access functionality. Conventional communication links do not necessarily meet these requirements. Power line channels, accessible via power line modems, do, in some cases, meet the requirements of video surveillance systems where conventional communication links do not. The present invention provides a flexible and reliable video surveillance system that includes networking and remote access capabilities employing power line communication channels.
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Citations
11 Claims
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1. A surveillance network node comprising:
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(a) a power line modem; (b) a second modem; (c) a first switch for selecting one of the power line modem and the second modem for a transmission of surveillance information; (d) a second switch for selecting one of the power line modem and the second modem from which to receive remote information; and (e) a computer usable medium having computer readable code means embodied therein comprising instructions for; (i) measuring information relating to the power line modem and the second modem through the second switch; and (ii) based on the measured information from (i); (A) selectively signalling the first switch to select one of the power line modem and the second modem for transmission of surveillance information and (B) selectively signalling the second switch to select one of the power line modem and the second modem for receiving remote information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A networked surveillance system comprising:
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(a) a plurality of surveillance network nodes each having a power line modem, a second modem, a first switch for selecting one of the power line modem and the second modem for transmission of surveillance information, a second switch for selecting one of the power line modem and the second modem from which to receive remote information and a controller for; (i) measuring information relating to the power line modem and the second modem through the second switch; and (ii) based on the measured information from (i); (A) selectively signalling the first switch to select one of the power line modem and the second modem for transmission of surveillance information and (B) selectively signalling the second switch to select one of the power line modem and the second modem for receiving remote information; (b) a client device configured to access surveillance information collected and transmitted by at least one of the surveillance network nodes. - View Dependent Claims (10, 11)
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Specification