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WIFI OR PoE FOR IP CAMERA, WHICH MAY BE THE BEST?
#1. NO NEED TO USE BOTH Wi-fi AND PoE
Yes, you can't use both Wi-fi and PoE at same time. If you hook up the IP camera to your router, you have to choose one of them, either Wi-fi or PoE.
Before you decide to buy an IP camera or a whole IP camera system, you should analysis the installation environment and investigate which functions you want to achieve.
Wi-fi or PoE, which is the best? As a older technician that has four years in video recording surveillance industry, my answer to this question is PoE is the suggested choice.
#2. WHAT'S WIFI
WiFi is a kind of wireless technology which allows network devices transfer data through cellular indication (2.4GHz UHF music group, 5GHz SHF strap).
Obviously, after the IP camera facilitates Wi-fi, the camera can connect your router without needing hardwired connection. Wi-fi can permit IP camera become lightweight, this is actually the advantage of Wireless.
But there are two drawbacks on WiFi, that are; every gadgets require power supply, which means your IP camera still requires cable for connection.
So far, I haven't found any IP cams are able to operate with battery power.
#3. WHAT LENGTHS Does indeed WI-FI REACH?
Limited WiFi transmitting distance is another problem.
What lengths does Wi-Fi reach? It isn't easy to answer this question.
When discussing WiFi coverage, we have many things to consider including electricity rate of WiFi device, environment (interior or outdoor) and more.
Typically, a home/office router (TP-Link) can offer WiFi coverage reaches up to 10 meters in house.
When Wi-fi devices are working outdoor without hurdle, the transmitting distance will be much much.
To extend the WiFi coverage or distance, you can mount WiFi gain access to point. Such an gain access to point (or hotspot) has a range around 20 meters (66 feet) 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 supply over sole Ethernet cable (Kitty5/6) is the main 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 permit IP camcorders support plug-and-play installation, which greatly reduced the installation procedures, and eliminate the necessity of electricity cable and supply.
Today, PoE has two standard including IEEE802.3af, and IEEE802.3at. IEEE802.3af can provide maximum vitality rate is to 15.4 W of DC vitality (bare minimum 44V DC and 350mA) to each device.
In order to provide power for high vitality ingestion devices, the IEEE association made another new standard - IEEE802.3at, this standard also known as 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. Negative aspects AND PROS OF POE TECHNOLOGY
Let's first of all discuss the features of PoE. A PoE IP camera can get the power from the Ethernet cable tv, no need extra vitality cable or power.
The maximum connection distance is 100 meters, which is ten times than Wi-fi. Since data transmission is through wired cable tv, there is absolutely no signal disturbance, no signal jamming.
For properly working of PoE devices, Ability sourcing equipment (PSE) is essential component, it can be a network PoE switch, or an intermediary device such as PoE injector.
A PoE switch is a lot expensive when compared to a traditional network change, which increased just a little on cost.
#6. Wireless VS POE
No best solution, only right solution. If you wish to install a unitary IP camera for home monitoring, you can choose to use Wi-fi IP camera.
Guaranteeing the Wireless IP camera is installed within coverage of your Wi-fi router.
For several IP camera, PoE is preferred. PoE is much reliable than Wi-fi in conditions of data transmission.
Furthermore, an IP camera system predicated on PoE is much easier to manage, centralized power solution becomes available e.g using uninterruptible power supply (UPS).
From my own investigation of surveillance market, I came across that Wi-fi IP camcorders are widely used for non-professional in house security, and PoE IP surveillance cameras are installed for outdoor monitoring system. But if you select Wi-fi IP Camera please read article below.
So how do you determine which cellular IP camera suits your needs?
Firstly, establish what you need. Many clients often don't really know which type of wireless IP camera suites and would satisfy their needs. As a result, they get sucked into buying cordless IP camcorders that are beyond what they want.
Before clicking or picking on that item to buy, always ask yourself: what conditions will the camera be located in? (Hallway, outdoor, low light or glowing); what accuracy of data would you like to get? (HD images with or without sound) and most importantly, what is your budget?
Subsequently, another essential feature to consider before sometimes a wireless IP camera is the pan and tilt range.
Naturally, this feature will depend on the surroundings where you intend to use the camera.
A broad skillet and tilt range is never a negative thing.
Thirdly, zooming capability of the cellular IP camera is also vital.
Make sure that you check the sort of zooming potential, whether its optical or digital.
A lot of the IP cameras in the market are digital, but you'll never fail to find one with optical zoom.
Fourth, test the gear before purchase.
This is vital, particularly when you are buying from your local electronic store.
Always request for a test setup as this will enable you to look for the picture quality of the camera.
Furthermore, it will give you an opportunity to learn how to set up the equipment in a proper manner to ensure that you get the best image and audio tracks quality.
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source :securitycamerawifi
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