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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 Wi-fi and PoE at same time. When you hook up the IP camera to your router, you have to choose one of them, either WiFi or PoE.
Before you decide 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.
Wi-fi or PoE, which is the better? As a older technician that has four years in training video security industry, my answer to this question is PoE is the recommended choice.
#2. WHAT'S WIFI
WiFi is a kind of wireless technology that allows network devices transmit data through cordless signal (2.4GHz UHF strap, 5GHz SHF music group).
Obviously, after the IP camera helps Wi-fi, the camera can hook up your router without using hardwired connection. Wi-fi can enable IP camera become lightweight, this is actually the advantage of WiFi.
But there are two downsides on WiFi, which are; every electronic devices require power, which means your IP camera still requires cable connection for connection.
So far, I haven't found any IP surveillance cameras are able to operate with battery packs.
#3. WHAT LENGTHS Will WI-FI REACH?
Limited WiFi transmitting distance is another problem.
How far will Wi-Fi reach? It's not easy to answer this question.
When talking about WiFi coverage, we have a lot of things to consider including electricity rate of WiFi device, environment (indoor or outdoor) and more.
Typically, a home/office router (TP-Link) provides WiFi coverage extends to up to 10 meters in house.
When WiFi devices will work outdoor without barrier, the transmission distance will be much significantly.
To increase the Wireless coverage or distance, you can mount WiFi gain access to point. This access point (or hotspot) has a range of about 20 meters (66 foot) indoors and a greater range outdoors.
#4. WHAT'S POE?
PoE stands for Power over Ethernet, this isn't a fresh technology, the first device adopts PoE technology was launched by Cisco in 1999. Transmitting both data and power supply over one Ethernet cable connection (Cat5/6) is the primary feature of PoE technology.
So 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 permit IP video cameras support plug-and-play assembly, which greatly reduced the installation procedures, and get rid of the necessity of ability cable and supply.
Today, PoE has two standard including IEEE802.3af, and IEEE802.3at. IEEE802.3af provides maximum electric power rate is to 15.4 W of DC vitality (minimal 44V DC and 350mA) to each device.
To be able to provide power supply for high vitality consumption devices, the IEEE association made another new standard - IEEE802.3at, this standard also called PoE+ or PoE plus, provides up to 25.5 W of ability.
PoE technology has been widely used in:
- IP surveillance system ( Camera + NVR)
- VoIP Phones
- WiFi Gain access to Point
- Network Routers
- Industrial devices
#5. Drawbacks 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 connection, no need extra power cable or power.
The maximum connection distance is 100 meters, which is ten times than Wireless. Since data transmission is through wired cable, there is absolutely no signal disturbance, no signal jamming.
For properly working of PoE devices, Vitality 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 than a traditional network move, which increased just a little on cost.
#6. Wi-fi VS POE
No best answer, only right solution. If you want to install a unitary IP camera for home monitoring, you can opt for WiFi IP camera.
Guaranteeing the Wireless IP camera is installed within coverage of your WiFi router.
For more than one IP camera, PoE is recommended. PoE is much reliable than Wireless in terms of data transmitting.
Furthermore, an IP camera system based on PoE is much easier to control, centralized electric power solution becomes available e.g using uninterruptible power (UPS).
From my personal investigation of security market, I came across that Wi-fi IP cams are widely used for non-professional inside security, and PoE IP video cameras are installed for outdoor security system. But if you choose Wi-fi IP Camera please read article below.
So how do you determine which cordless IP camera suits your needs?
Firstly, establish what you need. Many purchasers 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 consider: what conditions will the camera be situated in? (Hallway, outdoor, low light or excellent); what perfection of data would you like to catch? (HD images with or without audio) and most importantly, what's your budget?
Secondly, another essential feature to consider before sometimes a wireless IP camera is the skillet and tilt range.
Obviously, this feature will depend on the environment where you intend to use the camera.
A wide pan and tilt range is never a negative thing.
Thirdly, zooming capacity for the cellular IP camera is also vital.
Make sure that you check the kind of zooming ability, whether its optical or digital.
Most of the IP cameras on the market are digital, but you will 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 electric store.
Always obtain a test set up as this will permit you to determine the display quality of the camera.
In addition, it will offer you an chance to learn how to create the gear in an effective manner to ensure that you obtain the best image and audio tracks quality.
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