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WIFI OR PoE FOR IP CAMERA, WHICH IS THE BEST?
#1. YOU DON'T NEED TO USE BOTH Wi-fi AND PoE
Yes, you can't use both WiFi and PoE at same time. If you connect the IP camera to your router, you have to choose one of these, either Wi-fi or PoE.
Prior to deciding to buy an IP camera or a whole IP camera system, you should analysis the assembly environment and research which functions you want to achieve.
Wireless or PoE, which is the best? As a senior technician who may have four years in video security industry, my answer to this question is PoE is the suggested choice.
#2. WHAT'S WIFI
WiFi is some sort of wireless technology which allows network devices transmit data through wireless signal (2.4GHz UHF group, 5GHz SHF group).
Obviously, once the IP camera helps Wireless, the camera can connect your router without using hardwired connection. Wi-fi can allow IP camera become lightweight, this is the advantage of Wi-fi.
But there are two disadvantages on WiFi, that are; every gadgets require power supply, that means your IP camera still requires cable tv for connection.
Up to now, I haven't found any IP surveillance cameras are able to operate with batteries.
#3. WHAT LENGTHS Will WI-FI REACH?
Limited WiFi transmission distance is another problem.
How far does Wi-Fi reach? It isn't easy to answer this question.
When talking about WiFi coverage, we have many things to consider including electricity rate of Wireless device, environment (indoor or outdoor) and even more.
Typically, a home/office router (TP-Link) can offer WiFi coverage reaches up to 10 meters indoors.
When WiFi devices are working outdoor without hurdle, the transmitting distance will be much way.
To extend the Wireless coverage or distance, you can mount WiFi gain access to point. This gain access to point (or hotspot) has a variety around 20 meters (66 legs) indoors and a larger 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 over one Ethernet cable (Pet cat5/6) is the primary feature of PoE technology.
As long as your IP camera facilitates PoE, you just need to hook up 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 assembly procedures, and get rid of the necessity of electric power 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 (minimum 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 known as PoE+ or PoE plus, provides up to 25.5 W of vitality.
PoE technology has been widely used in:
- IP surveillance system ( Camera + NVR)
- VoIP Phones
- WiFi Access Point
- Network Routers
- Professional devices
#5. Disadvantages AND Benefits OF POE TECHNOLOGY
Let's first of all discuss the advantages of PoE. A PoE IP camera can get the power from the Ethernet cable tv, no need extra power cable or power.
The maximum interconnection distance is 100 meters, which is ten times than Wireless. Since data transmission is through wired wire, there is no signal disturbance, 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 when compared to a traditional network turn, 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 choose to use Wi-fi IP camera.
Guaranteeing the Wireless IP camera is installed within coverage of your Wireless router.
For more than one IP camera, PoE is preferred. PoE is much reliable than Wi-fi in terms of data transmission.
Furthermore, an IP camera system based on PoE is much easier to take care of, centralized power solution becomes available e.g using uninterruptible power supply (UPS).
From my own investigation of monitoring market, I found that Wireless IP video cameras are trusted for non-professional inside security, and PoE IP video cameras are installed for outdoor monitoring system. But if you select Wireless IP Camera please read article below.
So how do you really determine which cordless IP camera suits your preferences?
Firstly, establish what you need. Many customers often don't really know which kind of wireless IP camera suites and would satisfy their needs. Because of this, they get sucked into buying cellular IP video cameras that are beyond what they want.
Before clicking or picking on that item to buy, always ask yourself: what conditions will the camera be situated in? (Hallway, outdoor, low light or bright); what precision of data do you want to get? (HD images with or without audio) & most importantly, what is your budget?
Second of all, another essential feature to consider before getting yourself a wireless IP camera is the skillet and tilt range.
Obviously, this feature will depend on the environment where you would like to use the camera.
A wide skillet and tilt range is never a negative thing.
Thirdly, zooming capability of the cordless IP camera is also essential.
Make sure that you check the type of zooming capacity, whether its optical or digital.
Most of the IP cameras on the market are digital, but you'll never fail to find one with optical focus.
Fourth, test the gear before purchase.
That is vital, in particular when you are buying from your neighborhood electronic store.
Always obtain a test set up as this will enable you to look for the picture quality of the camera.
In addition, it will give you an possibility to learn how to create the equipment in a proper manner to make certain you receive the best image and music quality.
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source :securitycamerawifi
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