First, decide if you want a wired (PoE) or wireless (Wi-Fi) camera. Wired cameras offer a more stable and reliable connection, while wireless cameras offer more flexible placement options.
How Does a Network Camera Work? An In-Depth Guide to IP Surveillance network camera networkcamera work
A network camera (often called an IP camera) is a digital video camera that receives control data and sends image data via an Ethernet or Wi-Fi connection. Unlike analog cameras that require a direct coaxial cable connection to a digital video recorder (DVR), network cameras have built-in processing capabilities and can operate as standalone devices on a local area network (LAN) or the internet. First, decide if you want a wired (PoE)
A dedicated hardware appliance that aggregates, records, and manages multiple IP camera streams. An In-Depth Guide to IP Surveillance A network
| Protocol | Purpose | |----------|---------| | | Automatically obtains an IP address from the router | | DNS | Resolves hostnames (e.g., for dynamic DNS services) | | HTTP/HTTPS | Serves the camera’s configuration web page; also used for API calls | | RTSP | Streams video to viewers (e.g., VLC, QuickTime, NVRs) | | RTP/RTCP | Carries real‑time video and audio data; RTCP provides quality feedback | | ONVIF | Standardized discovery and control – allows cameras from different brands to work together | | SMTP | Sends email alerts with snapshots | | FTP/SFTP | Uploads images or video clips to a server | | SIP | For audio‑enabled cameras to act as VoIP endpoints (intercom applications) |