A watchdog is a software or hardware feature that monitors system activity and automatically resets or restarts a device if it becomes unresponsive. In surveillance systems, watchdogs help maintain continuous operation and prevent system crashes.
For example, if a camera or recorder freezes, the watchdog detects the issue and reboots the device to restore functionality. This ensures minimal downtime and reliable performance in critical environments.
While simple watchdogs perform basic resets, advanced systems log errors and notify users. As a result, security teams can respond quickly and maintain system stability.
By using a watchdog, organizations increase reliability and reduce the risk of surveillance interruptions.