Typically, a system designer calculates the pixel density based on
Typically, a system designer calculates the pixel density based on the horizontal resolution and the field of view. Pixel density is crucial in determining the level of detail a camera can capture in a specific area. Horizontal resolution refers to the number of pixels along the horizontal axis of the image sensor, while the field of view is the extent of the observable area captured by the camera. This calculation helps in ensuring that the camera setup meets the surveillance requirements. Reference: Axis Communications Design Tool
Which method can be used to make an Axis camera available over the internet?
Axis Secure Remote Access simplifies making Axis cameras available over the internet without the need for complex network configurations. This service provides a secure, encrypted connection to access and manage Axis devices remotely. By using Axis Secure Remote Access, users can avoid issues related to NAT traversal and firewall configurations, ensuring a reliable and secure remote connection. Detailed instructions and benefits of using Axis Secure Remote Access are outlined in Axis' support documentation.
What is the maximum distance from a midspan to a camera requiring PoE+ (25.5 W)?
The maximum distance from a midspan to a camera requiring PoE+ (25.5 W) is 100 meters (328 feet). This distance limitation is due to the standard Ethernet cable length limit, ensuring effective power delivery and data transmission over the network.
Which IP rating is most appropriate for an outdoor school playground?
For an outdoor school playground, the most appropriate IP rating is IP67. This rating indicates that the camera is completely protected against dust (the first digit '6') and can withstand immersion in water up to 1 meter for 30 minutes (the second digit '7'). This level of protection is ideal for outdoor environments where the camera may be exposed to dust, rain, and other environmental factors. Reference: Axis Communications Outdoor Cameras
When using an external IR illuminator, what can happen if the beam angle is significantly narrower than the field of view?
When using an external IR illuminator with a beam angle significantly narrower than the field of view, the exposure may be uneven. This can result in parts of the image being overexposed (too bright) while other parts remain underexposed (too dark). Ensuring that the beam angle of the IR illuminator matches the field of view of the camera is essential for achieving uniform illumination across the entire surveillance area. Reference: Axis Communications IR Illumination Guide
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