What does synchronous playback mean in DVR

Hello, I am Beijing Guofeng Dongsheng Terton Shang Junjie, our Beijing manufacturer, synchronous playback means For example, 4-channel playback video can be played back at the same time.

It should be time, sound, and image playback simultaneously.

Synchronous mode means that all returning channels are at the same time. For example, if you want to play back a 10:00 recording, all 4 channels will be 10:

00 clock video. At this time, you can only choose one time point, and the advantage is that you can click on it, and all the channels will jump to the same time. You can see that when [sync] is checked, there is only one channel 1 below to select the time, but in fact, there are 4 channels playing back at the same time.

Instead of the sync mode, with 4 channels, you can choose to play back recordings at different times. For example, in channel 1, you can play back at 9:00, and in channel 2, you can play back at 12:00

00, channel 3 playback 11; 00, channel 4 can be played back at 15:00You can choose as you like.

In the figure below, if you do not check [sync mode], you can select different time playback for each of the 4 channels.

You can see how poorly the instructions of Chinese factories are doing, they like to make words, but they don't define them. Who knows what his synchronous mode means.

The number of channels played back at the same time!

It's which surveillance camera you want to watch, one camera to one channel.

How to play back the video with Hikvision DVR:

1. Under the monitoring screen, right-click the mouse. A dialog box will pop up. Select the main menu.

In this case, you will need to enter your password manually. The default password of each brand of video recorder is different. The default password of Hikvision is 12345 or abcd1234

2. Enter the password manually. The default password of each brand of video recorder is different. The default password of Hikvision is 12345 or abcd1234

3. Enter the password to enter the operation interface of the video recorder.

4. Select Playback and click to enter. You'll see the camera's number in the upper right corner. Select the recording you want to play back.

5. Now you can start to view the video playback.

Play back mouse actions.

Single-screen preview status: Select [Playback] from the right-click menu to play back the video of the current preview channel;

Multiviewer preview status: Select [Playback] from the right-click menu to play back the video of the channel where the mouse pointer is located.

Front panel operation.

Single-screen preview state: Select the [Play] button to play back the video of the current preview channel;

Multiviewer preview status: Select the [Play] button to play back the video of the first channel in the upper left corner.

Note: During playback, you can switch the playback channel through the number keys on the front panel.

Multi-channel simultaneous playback.

In the playback interface, select and stop the video being played, select the channel to be synchronized in the channel window, and select to start synchronous playback.

2. Support up to 16 channels of synchronous playback.

3. The front panel cannot be operated by the channel window, please use the mouse to operate.

4. Multi-channel playback through the channel window selection, the playback is the video file of the whole day on the selected date. Hangzhou Hikvision digital.

This means that you can only play back up to 16 cameras at the same time, not more than 16.

It is generally recommended to play back 1-4 cameras at the same time.

Dahua's has VGA and HDMI outputs. There is also a BNC interface output.

Or you can buy a crossover... 1 point 2.

Yes, I've just done a project like this.

1. The operation method is incorrect; 2. The state of the hard disk is abnormal.

DVR generally has a video playback function, sometimes the video in the DVR can not be played back fault, at this time, first check whether there is a good video or whether there are other prompts, if you are sure that you have set up automatic recording, then you should check whether the DVR recognizes the hard disk, and finally it is recommended to enter the menu of the video recorder to check whether the hard disk status is normal.

What should I do if the DVR can't play back the video?

Answer: The monitoring can not be played back may be caused by the following reasons, 1. The hard disk is damaged, see if the hard disk status is wrong in the hard disk management menu, if there is no important video, you can format the hard disk, and it is possible to repair it. 2. The recording settings are incorrect, such as setting motion detection, but not dividing the motion detection area, checking whether the recording function has been turned on, checking whether the system time of the monitoring host is correct, determining the time period of monitoring playback, checking the saving path, etc. 3. Software problems, the machine crashes when searching for video, reboot can be normal, this is likely to be a software problem, if the computer is the host, you need to reinstall the monitoring software driver with full antivirus.

It is synchronized, and the landlord can put his hand in front of the camera and shake it to verify.