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WIFI OR PoE FOR IP CAMERA, WHICH IS THE BEST?
#1. NO NEED TO USE BOTH Wireless AND PoE
Yes, you can't use both Wireless and PoE at same time. After you hook up the IP camera to your router, you have to choose one of them, either Wireless or PoE.
Before you decide to buy an IP camera or a complete IP camera system, you should analysis the installation environment and investigate which functions you want to achieve.
Wireless or PoE, which is the better? As a mature technician that has four years in video security industry, my response to this question is PoE is the suggested choice.
#2. WHAT'S WIFI
WiFi is a kind of wireless technology which allows network devices transmit data through cellular indication (2.4GHz UHF band, 5GHz SHF group).
Obviously, after the IP camera supports Wireless, the camera can connect your router without needing hardwired connection. Wireless can allow IP camera become portable, this is the advantage of Wireless.
But there are two disadvantages on WiFi, that are; every electronic devices require power supply, which means your IP camera still requires cable connection for connection.
Up to now, I haven't found any IP video cameras are able to operate with electric batteries.
#3. WHAT LENGTHS Will WI-FI REACH?
Limited WiFi transmission distance is another problem.
What lengths will Wi-Fi reach? It isn't easy to answer this question.
When discussing WiFi coverage, we have a lot of things to consider including power rate of Wi-fi device, environment (inside or outdoor) and more.
Typically, a home/office router (TP-Link) provides WiFi coverage reaches up to 10 meters inside.
When WiFi devices will work outdoor without hurdle, the transmission distance will be much much.
To extend the Wi-fi coverage or distance, you can mount WiFi gain access to point. This access point (or hotspot) has a variety of about 20 meters (66 feet) indoors and a greater range outdoors.
#4. WHAT'S POE?
PoE means Power over Ethernet, this isn't a new technology, the first device adopts PoE technology was launched by Cisco in 1999. Transmitting both data and power supply over single Ethernet wire (Kitty5/6) is the primary feature of PoE technology.
As long as your IP camera facilitates PoE, you merely need to connect it to a PoE NVR or PoE switch, then it works. PoE technology enable IP cameras support plug-and-play installation, which greatly reduced the installation procedures, and get rid of the necessity of electricity cable and supply.
Today, PoE has two standard including IEEE802.3af, and IEEE802.3at. IEEE802.3af can offer maximum vitality rate is to 15.4 W of DC electricity (least 44V DC and 350mA) to each device.
In order to provide power supply for high electric power ingestion devices, the IEEE relationship made another new standard - IEEE802.3at, this standard also called PoE+ or PoE plus, provides up to 25.5 W of vitality.
PoE technology has been trusted in:
- IP monitoring system ( Camera + NVR)
- VoIP Phones
- WiFi Access Point
- Network Routers
- Commercial devices
#5. CONS AND Positives OF POE TECHNOLOGY
Let's first of all discuss the benefits of PoE. A PoE IP camera can get the energy from the Ethernet cable, no need extra vitality cable or power.
The maximum interconnection distance is 100 meters, which is ten times than WiFi. Since data transmission is through wired cable television, there is absolutely no signal disturbance, no signal jamming.
For properly working of PoE devices, Ability 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 much expensive than a traditional network change, which increased a little on cost.
#6. Wi-fi VS POE
No best solution, only right solution. If you want to install one single IP camera for home monitoring, you can opt for Wireless IP camera.
Ensuring the Wireless IP camera is installed within coverage of your Wireless router.
For more than one IP camera, PoE is recommended. PoE is much reliable than Wi-fi in terms of data transmitting.
Furthermore, an IP camera system based on PoE is a lot easier to control, centralized vitality solution becomes available e.g using uninterruptible power supply (UPS).
From my personal investigation of surveillance market, I came across that WiFi IP cameras are trusted for non-professional inside home security, and PoE IP camcorders are installed for outdoor surveillance system. But if you select Wireless IP Camera please read article below.
So how would you determine which cordless IP camera suits your preferences?
Firstly, establish the thing you need. Many clients often don't really know which kind of cellular IP camera suites and would meet their needs. As a result, they get sucked into buying wireless IP surveillance cameras that are beyond what they want.
Before clicking or picking on that item to buy, always consider: what conditions will the camera be situated in? (Hallway, outdoor, low light or glowing); what detail of data would you like to capture? (HD images with or without audio tracks) and most importantly, what is your budget?
Second, another essential feature to consider before sometimes a radio IP camera is the skillet and tilt range.
Certainly, this feature will rely upon the surroundings where you would like to use the camera.
A wide pan and tilt range is never a bad thing.
Thirdly, zooming capacity for the cellular IP camera is also essential.
Ensure that you check the sort of zooming capability, whether its optical or digital.
Most of the IP cameras on the market are digital, but you'll never neglect to find one with optical zoom.
Fourth, test the gear before purchase.
This is vital, particularly when you are buying from your neighborhood electronic store.
Always request for a test set up as this will permit you to determine the display quality of the camera.
In addition, it will offer you an possibility to learn how to set up the gear in a proper manner to make certain you get the best image and audio quality.
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