Transcript web cam
WebCam and Wireless Configuration The Long Term Ecological Research Network Office John Vande Castle Associate Director for Technology Development Example 1 – Basic fixed mount Ethernet linked AXIS 200 WebCam •Camera, Web server in single configuration •Support for standard html web access, smpt email, and ftp data transfers •Serial data capability •12VCD power •Relatively low image quality •Fixed aperture (auto gain but no iris) sensitive to sun, notlow-light capable Direct Access: Basic Web-access Configuration: FTP access: Example 2: Sony D30 pan/tilt/zoom auto-focus camera •Popular for generic applications •High quality images •Low-light capable •12VCD power •Requires protection from weather AXIS 2401 camera server •Single video input -although multiple and rack-mount servers available •Two serial data ports -one for PTZ, one for data connection •Ethernet-based setup •Linux controller Back of Sony D30 and AXIS 2401 Camera server •Video and robot serial data connection to server •Serial data connections and Ethernet data link •12VDC power Wireless connection possible by connection to FreeWave serial data transceiver or other data link such as a WILAN ”Hopper” FreeWave serial wireless data transmission •Medium Gain 900mhz antennae •Covers much of the Sevilleta (line of sight!) •Relatively low data rate (115kb) •Ethernet-based models available Configuration step 1 – Use specific IP address installer (there are more difficult ways) Video Server Setup… Example 3: D-Link DCS 100W 802.11b wireless WebCam •Standard 802.11b wireless data access •Stand-alone data transmission with trigger or timed picture transmission •Simple multiple camera capability within an established 802.11b “cloud” •5VDC Power supply •Fairly low image quality Camera Setup by Web access or Installation “wizard” installed on local computer: Initial setup by accessing “198.162.0.20 … Typical Network Setup Screen for Webcam Typical Wireless Network Setup Screen for Webcam Radio links at the Sevilleta Field Station: •Licensed voice •Licensed data (Campbell) •900mhz serial •802.11b to Cisco Access point Sevilleta Wolfcam: Directional 900mhz data link from tower at FWS building to WebCam tower Live Access Proper cables are everything! •Cross-over Ethernet link for D-Link Configuration •Serial connections more problematic – such as gender changers, and/or null modem •Many new antennae connectors are “proprietary” – difficult to find Proprietary connector for D-LINK – connection to standard “N” antennae connection •From Local supplier •Took 2 tries, 2 months wait •Probably not FCC approved