| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for reducing the risk of monitoring data failing to be stored.SOLUTION: The method includes: periodically sending a test message from a networked video camera to a networked storage device, i.e., NSD; generating an NSD fail signal in the networked video camera if events following the sending of the test message indicates that the NSD is not operating properly; and sending, in response to the NSD fail signal, a fail message from the networked video camera for detection outside a housing of the networked video camera. |
