ip camera using wifi
WIFI OR PoE FOR IP CAMERA, WHICH IS THE BEST?
#1. NO NEED TO USE BOTH WIFI AND PoE
Yes, you can't use both Wireless and PoE at same time. Once you connect the IP camera to your router, you have to choose one of them, either Wi-fi or PoE.
Prior to deciding to buy an IP camera or a whole IP camera system, you should analysis the unit installation environment and check out which functions you want to achieve.
Wireless or PoE, which is best? As a mature technician that has four years in video monitoring industry, my answer to this question is PoE is the recommended choice.
#2. WHAT'S WIFI
WiFi is a kind of wireless technology which allows network devices transmit data through cordless transmission (2.4GHz UHF music group, 5GHz SHF group).
Obviously, once the IP camera facilitates Wireless, the camera can connect your router without using hardwired connection. Wireless can allow IP camera become lightweight, this is the advantage of Wireless.
But there are two downsides on WiFi, which can be; every electronic devices require power, which means your IP camera still requires cable tv for connection.
Up to now, I haven't found any IP cams are able to operate with batteries.
#3. WHAT LENGTHS Will WI-FI REACH?
Limited WiFi transmitting distance is another problem.
What lengths does indeed Wi-Fi reach? It isn't easy to answer this question.
When talking about WiFi coverage, we have many things to consider including power rate of Wi-fi device, environment (indoors or outdoor) plus more.
Typically, a home/office router (TP-Link) provides WiFi coverage grows to up to 10 meters in house.
When Wi-fi devices are working outdoor without barrier, the transmission distance will be much considerably.
To increase the WiFi coverage or distance, you can mount WiFi access point. This access point (or hotspot) has a variety of about 20 meters (66 foot) indoors and a greater range outdoors.
#4. WHAT'S POE?
PoE means Power over Ethernet, this is not a new technology, the first device adopts PoE technology was launched by Cisco in 1999. Transmitting both data and power over single Ethernet wire (Cat5/6) is the primary feature of PoE technology.
As long as your IP camera supports PoE, you merely need to hook up it to a PoE NVR or PoE switch, then it works. PoE technology allow IP cams support plug-and-play unit installation, which greatly reduced the set up procedures, and get rid of the necessity of power cable and offer.
Today, PoE has two standard including IEEE802.3af, and IEEE802.3at. IEEE802.3af provides maximum power rate is to 15.4 W of DC vitality (bare minimum 44V DC and 350mA) to each device.
In order to provide power supply for high ability utilization devices, the IEEE relationship made another new standard - IEEE802.3at, this standard also known as PoE+ or PoE plus, provides up to 25.5 W of electric power.
PoE technology has been trusted in:
- IP surveillance system ( Camera + NVR)
- VoIP Phones
- WiFi Access Point
- Network Routers
- Commercial devices
#5. Downsides AND Advantages OF POE TECHNOLOGY
Let's firstly discuss the advantages of PoE. A PoE IP camera can get the power from the Ethernet wire, no need extra power cable or power supply.
The maximum connection distance is 100 meters, which is ten times than Wireless. Since data transmitting is through wired wire, there is no signal interference, no transmission jamming.
For properly working of PoE devices, Electric power sourcing equipment (PSE) is essential component, it's rather a network PoE switch, or an intermediary device such as PoE injector.
A PoE switch is a lot expensive than a traditional network switch, which increased just a little on cost.
#6. WIFI VS POE
No best answer, only right solution. If you wish to install a unitary IP camera for home monitoring, you can opt for Wireless IP camera.
Ensuring the Wi-fi IP camera is installed within coverage of your WiFi router.
For several IP camera, PoE is recommended. PoE is a lot reliable than Wi-fi in terms of data transmitting.
Furthermore, an IP camera system based on PoE is much easier to control, centralized electricity solution becomes available e.g using uninterruptible power supply (UPS).
From my personal investigation of surveillance market, I came across that Wi-fi IP camcorders are trusted for non-professional indoor home security, and PoE IP cams are installed for outdoor surveillance system. But if you choose Wi-fi IP Camera please read article below.
So how do you determine which cellular IP camera suits your needs?
Firstly, establish the thing you need. Many purchasers often don't really know which kind of cellular IP camera suites and would fulfill their needs. As a result, they get sucked into buying cellular IP cams that are beyond what they want.
Before clicking or picking on that item to buy, always consider: what conditions will the camera be located in? (Hallway, outdoor, low light or bright); what accuracy of data would you like to capture? (HD images with or without audio tracks) & most importantly, what's your budget?
Second, another essential feature to consider before getting yourself a radio IP camera is the skillet and tilt range.
Certainly, this feature will be based upon the environment where you would like to use the camera.
A broad pan and tilt range is never a bad thing.
Thirdly, zooming capacity for the cellular IP camera is also essential.
Make sure that you check the type of zooming capacity, whether its optical or digital.
A lot of the IP cameras on the market are digital, but you'll never neglect to find one with optical move.
Fourth, test the gear before purchase.
That is vital, in particular when you are buying from your neighborhood electronic digital store.
Always request for a test set up as this will permit you to look for the picture quality of the camera.
In addition, it will offer you an possibility to learn how to set up the equipment in an effective manner to make sure that you get the best image and audio tracks quality.
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source :securitycamerawifi
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