Contents

Introduction

Requirements

Configuration

Configuration for ANR Function

Verification

Conclusion

QA

Introduction

The ANR (Automatic Network Replenishment) function is designed to ensure uninterrupted recording. When the network connection between the VIGI IPC and VIGI NVR is interrupted, the camera temporarily stores the footage on its SD card. After the connection is restored, the NVR automatically retrieves these recordings to its hard drive, ensuring continuous and complete video playback.

Requirements

• VIGI NVR equipped with HDD
• VIGI IPC with SD card installed

Configuration

This guide demonstrates ANR configuration using the VIGI NVR web interface as an example.

Configuration for ANR Function

Step 1. Ensure that the VIGI IPC has been upgraded to the firmware version that supports ANR. Insert an SD card into the IPC and make sure the SD card works properly.

Step 2. After adding the IPC to the NVR, navigate to Settings > Storage > Recording Schedule. If the connected IPC supports the ANR feature, an ANR switch will appear as shown below.

Step 3. Enable the ANR switch. It is recommended to check Sync the recording schedule to camera for complete data backup.

Step 4. Click Apply to save the settings.

Verification

(1) Go to the Playback page and check the playback of the videos during the disconnection period.

(2) Navigate to Information > System Logs and check the records for when ANR started and ended.

Conclusion

With the steps above, you have successfully enabled the ANR function, allowing the IPC to store video locally during network interruptions and automatically retrieve the recordings to the NVR once the connection is reestablished.

Get to know more details of each function and configuration please go to Download Center to download the manual of your product.

QA

Q1: After an IPC reconnects to the NVR, the recordings during the disconnection period were not successfully retrieved. What should I do?

A1:
(1) Check the NVR settings: Ensure that the Recording Schedule was correctly configured during the disconnection period. When enabling the ANR function, it is recommended to select Sync the recording schedule to the camera to ensure complete retrieval of the recordings.
(2) Check the IPC SD card status: Log in to the IPC, confirm that the SD card is functioning properly, and verify whether the recordings from the disconnection period can be played back directly on the IPC.

Q2: After enabling ANR, when the NVR reconnects to the IPC, how long can the NVR retrieve the recordings?

A2: When the IPC and NVR reconnect, the NVR can retrieve up to the most recent 7 days of recordings stored on the IPC.

Q3: Under what conditions will recordings fail to be retrieved by the NVR?

A3: Recordings cannot be retrieved under the following conditions:

• The missing recordings were not caused by a network disconnection between the IPC and the NVR.
• If the NVR’s hard drive is formatted during the retrieval process, all retrieval tasks will be lost and cannot continue.

Q4: Under what circumstances will the NVR pause the retrieval process?

A4: The retrieval process will be paused in the following situations:

• The IPC’s SD card is removed or becomes unavailable.
• The NVR’s hard drive is full.
• Real-time bandwidth usage becomes high (over 80%), for example in high-bitrate or complex scenes.
• Recordings are played back directly on the IPC during retrieval, such as accessing the IPC’s Playback page through its web management interface, app, or other management software.

Q5: How are event types and stream types (HD/SD) displayed after ANR retrieval?

A5: The current ANR feature does not yet support identifying the specific event types recorded by the IPC, nor can it distinguish between the IPC’s main and sub streams (HD/SD). These capabilities will be improved in future updates.