DVR SURVEILLANCE

SYSTEMS FOR RESTAURANTS

What you do not know CAN affect you and your income.

The solution is affordable restaurant digital surveillance technology to look after your business.


RESTAURANT SURVEILLANCE FREQUENTLY ASKED QUESTIONS

What is Infrared Camera?

Infrared Cameras are specially designed for the extreme night conditions, such as in night Surveillance or very low light applications, these type of camera comes with an Infrared illuminators in it, which help’s the camera to capture the video in extreme dark in which human eyes cannot see, normally human eyes can see in wave length below 700nm, these infrared rays has more than 700nm wave length, usually they have 730nm, 830nm, and 950nm wavelengths, which is invisible to Human eyes, so it helps to Capture videos in extreme dark without letting anybody knows about it.


What is DVR?

DVR is a Digital Video Recorder. These DVR are used to record the Videos from the Camera and then save it to the Inbuilt Hard Disk. This DVR comes in various types and with different features. Such as multiple channels/cameras, remote monitoring, alarm setting, motion detection, etc. Some DVRs have PCI-Card, which is inbuilt card for you personal computer that is compatible with various operating systems to make your CPU work as a DVR and at the same time you can use your computer’s monitor for viewing the videos.


What is PCI-Card?

PCI-Card is the inbuilt card for your personal computer which helps you to make your PC the part of your Surveillance System. These cards also come with different characteristics for different applications such as different channels and different software for different operating systems.


Do I get software of remote viewing with System?

Yes, You will get the remote viewing software with our systems.


Does wireless work as good as or better than cables?

No, a wireless system is never as reliable as a hardwired system. We recommend using a hardwired system because there are a number of benefits when you run cables. The system is more reliable, more secure since the signal can not be picked up by someone with a wireless receiver and the system price is much lower.


Does the DVR have any capabilities of off-loading the video/audio to another device?

You can transfer video from the DVR to a memory stick. The DVR has a USB port. You can also upgrade to a DVR with a CD/RW Drive if you wanted to use a CD. Keep in mind this is only for transferring video clips not backing up the whole drive.


Does it come with a Warranty?

Most of the DVRs and complete systems come with a 1 year warranty. Cameras and monitors have a 1 year warranty also.


How many days or hours does the DVR record the videos?

We have varieties of DVR’s such as 4, 8, 16, 24, 32 channels, they also have different hard disks, so it will totally depend on which DVR you go. For example, 4 channel DVRs with 250GB hard disk will give you around 5 -7 days of recording based on the resolution you selected for the recording.


Will Resolution selected for recording effect the space on the DVR?

Yes, it will because if the DVR is setup for motion activation, it will save your hard disk space and will give you more days of recording based on the motion activity.


Do all the DVRs include motion detection feature?

Yes, all multi channel DVR's include this function.


What is Static IP address and how do I get it?

Static IP address is a permanent identity code for your network to access the network server authentication, It gives you specific identification when you log in to network, but if you use a dynamic IP address so it is not permanent and keeps on changing every time you log off and log in to the internet, it will be hard to use the surveillance system remotely, so for using our surveillance systems you need Static IP.

Static IP is provided by Internet Service Provider if you cannot obtain a static IP address you can sign up for a free service online which would allow you to watch cameras using their free services. You can go to their website and sign up there: www.dyndns.com


What lens do I need covering an angle of?

Focal Length Angle of View
2.8mm 97.4 degrees
4mm 71.6 degrees
6mm 44.4 degrees
8mm 34.5 degrees
3.3-8mm 95.2-35.9 degrees
5-60mm 53.6-4 degrees


What Running Distances RG-59u, RG-6U, RG11U?

Cable Type Maximum Distance
RG59/U 750 ft (229 m)
RG6/U 1,000 ft (305 m)
RG11/U 1,500 ft (457 m)

Minimum cable requirements:
75 ohms impedance
All-copper center conductor
All-copper braided shield with 95% braid coverage


What is Depth of Field?

Depth of Field describes the area in front and behind the subject that appears in focus.

Depth of field is affected and is controlled by the following:

1) Focal length of the lens - the shorter the focul length the greater the depth of field. A 28mm wide angle lens has a greater depth of field than a 50mm or telephoto lens (200mm or greater)

2) Distance between camera and subject - The farther the distance between you(the photographer) and your subject the greater the depth of field. As you get closer to your subject, the depth of field will narrow. This is why close up or macro photography will usually have a blurred background and you might even notice that parts of the subject are out of focus. This problem can be helped by using a shorter focul length lens and the following.

3) Lens Aperture - The lens contains what is called an aperture and is measured in f-stops. The aperture controls the amount of light passing through the lens to the film plane inside your camera. This is found on the ring nearest your slr camera with the numbers on the top of the ring. Depending on the quality of the lens, you'll normally see numbers such as 2.8, 4, 5.6, etc... These numbers denote the size of the opening inside the lens.

The smaller the number, the larger the opening inside your lens, eg. at 2.8 your lens aperture is wide open. At 11 or 16, your lens is 'stopped down' which means the aperture is almost closed.

Depth of field can be controlled by the aperture of your lens. The larger the aperture opening (2.8) the narrower the depth of field. The smaller the opening (16) the greater the depth of field. The lens works exactly as your eye works. In bright light, your iris closes which gives you greater depth of field. Things appear much sharper.


How do you measure the Focal Length?

The Focal Length is measured in mm. As a guide:

A short focal length (e.g. 2.5mm) = a wide angle of view

A long focal length (e.g. 16mm) = a narrow angle of view

The smaller the CCD Chip, the narrower the angle of view

1 / (Object Distance) + 1 / (image distance) = 1 / (Focal Length)
HOME

CAMERA SYSTEMS

4 Channel System
8 Channel System
16 Channel System
 INTEGRATED CAMERA SYSTEMS

3 4 Channel System
2 8 Channel System
1 16 Channel System
1 32 Channel System
POS VIDEO INTEGRATION

FAQs

CONTACT US

BLOG