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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. While you connect 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 complete IP camera system, you should analysis the unit installation environment and research which functions you want to attain.
Wi-fi or PoE, which is the foremost? As a older technician that has four years in training video surveillance industry, my response to this question is PoE is the suggested choice.
#2. WHAT'S WIFI
WiFi is some sort of wireless technology that allows network devices transfer data through wireless signal (2.4GHz UHF strap, 5GHz SHF music group).
Obviously, once the IP camera supports WiFi, the camera can connect your router without needing hardwired connection. Wi-fi can allow IP camera become portable, this is the advantage of Wi-fi.
But there are two downsides on WiFi, which can be; every gadgets require power, that means your IP camera still requires cable for connection.
Up to now, I haven't found any IP cameras are able to operate with batteries.
#3. WHAT LENGTHS Does indeed WI-FI REACH?
Limited WiFi transmitting distance is another problem.
What lengths will Wi-Fi reach? It's not easy to answer this question.
When discussing WiFi coverage, we've many things to consider including electric power rate of WiFi device, environment (indoor or outdoor) plus more.
Typically, a home/office router (TP-Link) provides WiFi coverage extends to up to 10 meters indoors.
When Wi-fi devices are working outdoor without hurdle, the transmitting distance will be much much.
To extend the Wireless coverage or distance, you can mount WiFi access point. Such an gain access to point (or hotspot) has a range 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 new technology, the first device adopts PoE technology was launched by Cisco in 1999. Transmitting both data and power over one Ethernet cable (Kitty5/6) is the primary feature of PoE technology.
As long as your IP camera helps PoE, you just need to hook up it to a PoE NVR or PoE switch, then it works. PoE technology allow IP video cameras support plug-and-play installation, which greatly reduced the assembly procedures, and eliminate the necessity of vitality cable and offer.
Today, PoE has two standard including IEEE802.3af, and IEEE802.3at. IEEE802.3af provides maximum ability rate is to 15.4 W of DC electric power (bare minimum 44V DC and 350mA) to each device.
In order to provide power supply for high electricity use devices, the IEEE connection made another new standard - IEEE802.3at, this standard also known as PoE+ or PoE plus, provides up to 25.5 W of power.
PoE technology has been widely used in:
- IP security system ( Camera + NVR)
- VoIP Phones
- WiFi Gain access to Point
- Network Routers
- Commercial devices
#5. Drawbacks AND PROS OF POE TECHNOLOGY
Let's firstly discuss the advantages of PoE. A PoE IP camera can get the power from the Ethernet cable connection, no need extra power cable or power.
The maximum interconnection distance is 100 meters, which is ten times than Wi-fi. Since data transmitting is through wired cable television, there is absolutely no signal disturbance, no signal jamming.
For properly working of PoE devices, Electric power 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 much expensive than a traditional network transition, which increased just a little on cost.
#6. WIFI VS POE
No best solution, only right solution. If you want to install one single IP camera for home monitoring, you can choose to use Wi-fi IP camera.
Making sure the Wireless IP camera is installed within coverage of your Wireless router.
For more than one IP camera, PoE is recommended. PoE is a lot reliable than Wireless in terms of data transmitting.
Furthermore, an IP camera system based on PoE is a lot easier to take care of, centralized electric 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 cams are trusted for non-professional indoors security, and PoE IP cams are installed for outdoor surveillance system. But if you select Wi-fi IP Camera please read article below.
So how can you determine which wireless IP camera suits your needs?
Firstly, establish the thing you need. Many buyers often don't really know which kind of cellular IP camera suites and would meet their needs. Because of this, they get sucked into buying wireless IP 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 precision of data do you want to get? (HD images with or without sound) & most importantly, what's your budget?
Subsequently, 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 want to use the camera.
A broad skillet and tilt range is never a negative thing.
Thirdly, zooming capability of the cordless IP camera is also essential.
Ensure that you check the kind of zooming capabilities, 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 focus.
Fourth, test the equipment before purchase.
That is vital, in particular when you are buying from your local digital 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 possibility to learn how to set up the gear in a proper manner to make sure that you get the best image and audio quality.
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source :securitycamerawifi
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