Wednesday, 11 May 2011

How to select IR Cameras?

IR Cemras are increasingly becoming more popular by the day. The reason for the this popularity are dropping prices, more choice and ready availability. Choosing a good IR Camera for a particular site may pose a tough question in the minds of puchaser. Here is nitty grityy of what you essentially need to know:
1.)    How far out will the camera need to see? Most IR cameras are specified at being able to see a certain distance in the dark. If you are wanting to see a 100ft out in the distance be sure the camera is rated for that distance more so check out a demo video footage for the same.
2.)   Some camera placements can cause viewing issues if you go with an IR camera that is to powerful for the area needed. If the cameras is going in a small room or even outside looking in a small fenced in or partitioned off area. If you place an IR camera that has a illumination range or 100ft in an area that is only 10-15ft in length the light has the potential to reflect off of any walls or objects and can cause the camera to have a white glare in the image leading to distortion.
3.)    Is IR always the answer? No, let’s say the camera is going in a bar or a low lit restaurant that has a very, you may find that there is not enough light to provide the IR camera with the ability to stay in day mode, but the area may have more light than what is needed to truly be in a night mode. The best recommendation for this setup would be a camera with a really low lux level and great light adjustment features.
4.)   The lens also plays a major role in picture clarity during dark. A 3.6mm lens usually teands to leave a white circle in the image and this circle vanishes as the lens is increased to 6 mm. Decide your  camera lens according to your requirement.

Sunday, 8 May 2011

Baby/Home Monitoring for professionals.....


CCTVs- Checklist before buying

CCTV systems are the in thing today a must have for every corporate, institution and homes. The benefits of using surveillance  have been such that nobody can ignore CCTVs any further. However before you go down to the nearest electronic store for buying a surveillance system, it would be beneficial to keep the following things in mind.
The first thing to check out in a DVR is to check  its frames per second. It can give you a fair idea about the effectiveness of the cctv system you are about to buy. Keep in mind that the average frames per second of a good cctv system is 25 frames per second. Make sure that each of the DVR ports have an individual capacity of recording 25 frames per second. This is an important for realtime viewinf of recorded footage.
The number of television lines (TVL) supported by the cameras is another measure of how good your solution is. The average number of television lines supported by a good cctv system is 400. However there are higher versions available as well and you may opt for them if you think the need to do so for better picture clarity. It is essential that the resolution or picture quality of the video captured in the cctv is good, which would help you in identifying suspects. 

The system should have ample storage space for recording and the recording codec should be H.264. A 500 GB surveillance HDD is good enough for 8-12 days of video footage for 4 cameras 24/4 recording.  You should check to total HDD support capacity of the DVR.

Ability of the solution to provide you with live footage over your windows based PC/Laptop and Cellular phones should be checked as its always handy to see your premises while you are away. Cell phones based on symbian, Android and IPhone Platforms are generally supported over 3G, GPRS and Wifi networks.

 Lastly, do a research on the reputation of your vendor; number of installation base he has, testimonials from clients and his outlook towards after sales service. Do not hesitate to ask for a online demo if you wish to check the clarity of cameras.
Please mail at sales.ramenterprises@gmail.com for all your queries.