home wireless ip camera
WIFI OR PoE FOR IP CAMERA, WHICH IS THE BEST?
#1. NO NEED TO USE BOTH Wi-fi 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 WiFi or PoE.
Before you decide to buy an IP camera or a complete IP camera system, you should analysis the set up environment and investigate which functions you want to achieve.
Wi-fi or PoE, which is the foremost? 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 that allows network devices transfer data through cordless transmission (2.4GHz UHF band, 5GHz SHF music group).
Obviously, after the IP camera helps Wireless, the camera can connect your router without using hardwired connection. Wireless can permit IP camera become lightweight, this is the advantage of Wireless.
But there are two disadvantages on WiFi, which are; every electronic devices require power supply, which means your IP camera still requires cable television for connection.
Up to now, I haven't found any IP camcorders are able to operate with battery packs.
#3. WHAT LENGTHS Does indeed WI-FI REACH?
Limited WiFi transmission 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 (indoors or outdoor) and even more.
Typically, a home/office router (TP-Link) can offer WiFi coverage reaches up to 10 meters indoor.
When WiFi devices are working outdoor without hurdle, the transmitting distance will be much much.
To extend the Wi-fi coverage or distance, you can set up WiFi gain access to point. This access point (or hotspot) has a range around 20 meters (66 toes) 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 solitary Ethernet cable (Cat5/6) is the main feature of PoE technology.
So long as your IP camera helps PoE, you just 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 unit installation procedures, and get rid of the necessity of electricity 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 ability (least 44V DC and 350mA) to each device.
To be able to provide power for high electricity usage devices, the IEEE connection 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 monitoring system ( Camera + NVR)
- VoIP Phones
- WiFi Access Point
- Network Routers
- Industrial devices
#5. Drawbacks AND PROS OF POE TECHNOLOGY
Let's firstly discuss the features 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 WiFi. Since data transmission is through wired wire, there is absolutely no signal interference, no indication jamming.
For properly working of PoE devices, Vitality 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 than a traditional network switch, which increased just a little on cost.
#6. WIFI VS POE
No best answer, only right solution. If you want to install one single IP camera for home monitoring, you can opt for WiFi IP camera.
Guaranteeing the WiFi 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 deal with, centralized electric power solution becomes available e.g using uninterruptible power (UPS).
From my own investigation of security market, I found that Wi-fi IP video cameras are widely used for non-professional inside security, and PoE IP video cameras are installed for outdoor surveillance system. But if you choose WiFi IP Camera please read article below.
So how do you really determine which cellular IP camera suits your preferences?
Firstly, establish the thing you need. Many buyers often don't really know which type of wireless IP camera suites and would satisfy their needs. Because of this, they get sucked into buying wireless IP video cameras that are beyond what they want.
Before clicking or picking on that item to buy, always consider: what conditions will the camera be located in? (Hallway, outdoor, low light or dazzling); what perfection of data do you want to capture? (HD images with or without audio tracks) & most importantly, what's your budget?
Second, another essential feature to consider before getting yourself a wireless IP camera is the pan and tilt range.
Obviously, this feature will depend on the surroundings where you would like to use the camera.
A broad pan and tilt range is never an awful thing.
Thirdly, zooming capability of the cordless 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'll never fail to find one with optical focus.
Fourth, test the equipment before purchase.
This is vital, specially when you are buying from your neighborhood electric store.
Always request for a test installation as this will enable you to determine the display quality of the camera.
In addition, it will offer you an possibility to learn how to create the equipment in a proper manner to ensure that you find the best image and audio tracks quality.
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