surveillance camera system good for low price?
My son and I are being stalked,shouted death threats,son was assaulted case still going on.Rocks thrown at house,vandalism to vehicles,tried to hit me with his pickup.By a Mexican male and his son.Police arrested the son after assault,but harrassment continues.I talked to police again today and county attorney,still when my son rode his bicycle down to the bank and back,the one that assaulted him and his girlfriend drove around him shouting threats at him! What is a a good button type cam,and or home system and at least one camera,prefer four that has night vision and good voice recording? Any help appreciated.
Comments
Here is a DVR that will work perfectly for you.
http://ascendentdvr.com/x4sdvr/x4s-8240d%E2%80%A6
http://www.ascendentgroup.com/~ascendent%E2%80%A6 (pricing is dealer so unless your a certified installed you will probably have to pay 25% more which is still a steal of a deal)
Just about any Analog DVR will do what you are looking for and not only display them but record them as well they will also allow you to view them over the internet from a Iphone or laptop.
Many people have a misconception that IP has Superior scalability then Analog but with the advancements with DVR's this simply isn't true, you cn do up to 16,000 cameras each camera could even be from a different DVR and a different site.
And when you are using the internet to connect multiple sites together analog transmits over the internet faster with less latency using less bandwidth allowing you not only to view and monitor a situation real time but also effective control PTZ cameras.
What is the Advantage of IP?
Many of the so called advantages of IP simply don't hold water in the real world, IP is mainly Hype and marketing and outside of a few niche applications such as 1 or 2 camera installs, where MP cameras are needed or large scale wireless projects which represent about 2% of the total CCTV market, IP has very few advantages compared to analog based on performance, cost and reliability. (yet all companies touting IP will often use MP cameras to demonstrate the advantages of IP)
IP video is more about marketing then it is about performance as larger companies like Bosch pelco Honeywell axis can change for both hardware and software and once you use there cameras you have to keep using there cameras unlike analog.
Also IP sounds great, plug and play, Better image quality, use existing infrastructure, who wouldn’t want that unfortunately this is often not the case.
IP is like wireless (in theory its perfect) if that was true there would be no wired cameras or analog cameras it would all be wireless IP.
IP cameras are based on CMOS
Analog cameras are based on CCD (usually)
CCD image sensors contain hundreds
of thousands picture elements, called pixels. Each pixel contains a light sensitive element and a capacitor.
A CMOS sensor is constructed using a array of pixels, but unlike CCD’s CMOS do not have a capacitor to store the charge for each pixel.The rows of pixels are activated sequentially rather then individually
This means CMOS has some significant disadvantages compared to CCD, this means CMOS
have inferior ability to cope with ambient lighting such as back light, bright, deep shadows contrasts, low light and IR this is also known as the real word.
In short unless you have perfect lighting a good CCD camera will outperform an equivalent CMOS camera.
File Size:
The smaller the files size the more images that are able to be sent and the faster they can be processed improving both FPS and speed. File size is the heart of any DVR and goes far beyond just its streaming capabilities as it also determines the recoding storage time, how much you can back up at once, how fast it renders and searches video. (Ascendents X3 DVR achieves file sizes as low as .3KB on normal image quality on a CIF image no IP camera on the market will come close to this) The file size of a DVR impacts the performance of the DVR in just about every aspect from speed to longevity and is often the most import spec of any DVR.
IP cameras have up to a 5X larger file size then analog cameras. (at same resolution) I have seen MP cameras that on 2MP resolution are over 300X (%3000) larger then our X3 DVR on a CIF image. This is an extreme case but generally speaking IP cameras have a much larger file size.
Most routers and switches are not designed to handle IP cameras they have enough bandwidth but they are not able to process the amounts of commands. (9 IP cameras 30FP is 230 instructions per second) standard routers have enough bandwidth (up to 1GB) but cant handle the amount of tasks (instructions) so frames get dropped latency is introduced and the effectiveness of other devices such as POS, printers and dats storage can be affected and compromised.
Don’t get me wrong there are some brutal analog cameras and DVR out there but If you see a good D1 resolution image such as Ascendents Hardware compressed you will not be so quick to join the IP bandwagon.
IP is a young and emerging technology and I have no doubt that in the future it will outperform analog cameras but its not a mature technology yet. Once we start to get standard IP platforms, get rid of license fees’ and existing networks have larger bandwidths then IP video will be a good solution, but until then analog is the way to go.
Make sure you get good cameras as well, Ascendent has the best IR outdoor cameras on the market and are about %50 less then Bosch while offering triple the distance.
Suggest you contact a home security company. You might get a better answer in the camcorder category.