Learning & Support

FAQs

HOW TO PROTECT YOUR CAMERA SYSTEM FROM LIGHTNING?

Lightning strikes and voltage surgescan damage your security camera systems. Lightning/surge protection is essential when installing the video surveillance systems, especially the outdoor cameras are more prone to lightning strike.  Although most of the CCTV equipment features standard lightning/surge protection, you still need to have extra measures to protect the system from lightning strikes.

 

HOW TO PROTECT YOUR CAMERA SYSTEM FROM LIGHTNING?

  1. All the equipment should be properly grounded to the building’s structural steel as close to the equipment as possible.
  2. Don’t use individual power supplier for cameras, using a power distribution box with circuit breakers to help minimize the damage that can be incurred to power surges.
  3. Utilizing a surge protector to prevent possible damage to DVR/NVR.
  4. If possible, employing a Uninterrupted Power Supply to protect the system against power surges, power lags and power failures. 
HELP! IP CAMERA’S IP ADDRESS CONSTANTLY CHANGES.

When we use the IP camera system, we may find that the local IP address of connected IP camera constantly changes after a period of time. Therefore the NVR looses the video connection with the camera. This happens even when we disable the DHCP function on the camera.

If you also recently encounter this little problem, you can solve this by simply binding the IP address to MAC address of the camera on the router/switch. Therefore, the IP camera will has this static IP address all the time.

1. FIND THE IP ADDRESS AND MAC ADDRESS OF YOUR CAMERA.

You can easily find the IP address and MAC address of your camera on the computers with command prompt.

 Running the CMD on your computer, then enter command: arp -a then press Enter, it will show the all the IP addresses and MAC addresses of network devices which are in the same local network.

2. BIND IP ADDRESS AND MAC ADDRESS

Firstly making sure you set the IP address to a static one and DHCP should be disabled. Then login your router/switch’s admin webpage.For D-Link router, click IP & MAC Binding->Binding setting on the left page. Select Enable ARP Binding, and click Save. Click Bind All to bind the IP address and MAC address for all connected devices. Additionally, you can add IP address and MAC address manually.

 

HOW DO I ENABLE ACTIVE X CONTROL FOR INTERNET EXPLORER.

 1. Open Internet Explorer. Click on “Tools” button, on the Tools menu, click

 

2. Internet Options

        

3.  Select the Security tab.



4. Make sure that the Internet content zone is selected and click Custom Level.



5. Set Automatic Prompting for ActiveX controls and plug-ins to enable.


6. Set Download signed ActiveX controls and plug-ins to prompt.
7. Set Download unsigned ActiveX controls and plug-ins to Prompt.
8. Set Initialize and script ActiveX controls…… and plug-ins to Prompt. (See example below)





9. Click OK, or YES when prompted. Make sure you close all open window of Internet Explorer. Open

Back the Internet Explorer browser.

HOW TO CALCULATE THE STORAGE SIZE FOR AHD/HDCVI/HDTVI DVR?

No matter you want to use an IP camera system or a HD camera system, you have to use HDDs for video storage, here comes the question - how many HDDs should the system use? what the capacity size of the HDD should be used? Installers or end-users need to estimate the required storage size according to the time length that the system should keep the video footage. Additionally, sometimes the cost of one piece HDD is equivalent to the entire cost of camera system, hence we don’t want to waste money on HDDs.

HOW TO CALCULATE THE STORAGE SIZE?

To estimate or calculate the storage size you can use the formula as below:
Storage size = (bit rate*3600*24) / (8*1024*1024), the result’s unit is Gigabyte per day.      
For example: a 720p IP camera, its bit rate setting is 2048Kb/s, the storage size for a day is(2048*3600*24)/8*1024*1024) = 21 Gigabyte

Bit rate (Kb/s)

512

1025

2048

4096

GB/Day

5.5

11

21

42



Storage size for some common bit rate settings:

HDCVI/AHD/TVI HD analog camera bit rate and storage size:

720P, the corresponding bit rate – 2048Kb/s, each camera/channel requires 0.9GB storage size per hour.
1080P, the corresponding bit rate – 4096Kb/s, each camera/channel needs 1.8GB storage size per hour.

2# HOW TO LOWER STORAGE SIZE FOR VIDEO SYSTEM?

There are several ways to lower the storage size for cameras, therefore you can either reduce the number of HDDs for storage size or extend the time length to store the video.

H.265/H.264/MJPEG

Being able to reduce the bit rate to half, the H.265/HEVC standard can double video compression efficiency, therefore it’s the best choice if you wish to save the budget on HDDs.

ROI ENCODING

ROI stands for region of interest, it’s a kind of smart encode technology can lower the image quality of uninterested region of the image to reduce the bit rate of the entire video stream of your IP cameras, therefore can greatly save the storage size.

LOWER BITRATE

Both IP cameras and DVRs allow users to set the encoding bit rate, the bit rate is one of variables which is positively correlated with storage size. Lowering the bit rate can help to reduce the storage size; however inevitably will impact the image quality.

REDUCE FRAME RATE

Instead of lower image resolution, you can reduce the frame rate to save the storage size. Doing so will not impact on image quality, also reducing the frame rate to 12-15fps will not cause an obvious difference when playing the video. People cannot distinguish between real-time (25fps) and 15fps videos when both videos are played in normal speed. However, if require capturing the motion objects, real-time or high frame rate is needed.

 

LOWER IMAGE RESOLUTION

Lower the image resolution is the easiest way to reduce the file size of video, therefore can save bandwidth and storage size. Nonetheless, this will significantly reduce the image quality, it may not be a good option in most cases.

NOTE: If you only use one or two security cameras, we recommend the consumer Wi-Fi cameras. These cameras typically have a microSDHC/TF card slot to support on-board video storage. Simply inserting a TF memory card (e.g. 16GB/36GG/64GB), the video will be stored in memory card, therefore can eliminate the usage of network video recorder. We offer 1080P/720P smart Wi-Fi cameras not only support TF card video recording, but also featuring dual motion detection (PIR + video) which can greatly reduce the false alarm, while notify users immediately upon detecting human movements

 

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