dahua 1mp ip camera
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. When you hook up the IP camera to your router, you have to choose one of these, either WiFi 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 accomplish.
Wi-fi or PoE, which is the foremost? As a senior technician who have 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 strap, 5GHz SHF music group).
Obviously, after the IP camera supports Wi-fi, the camera can connect your router without needing hardwired connection. Wireless can permit IP camera become lightweight, this is the advantage of WiFi.
But there are two disadvantages on WiFi, which are; every electronic devices require power, that means your IP camera still requires cable tv for connection.
So far, I haven't found any IP cams have the ability to operate with electric batteries.
#3. WHAT LENGTHS Does indeed WI-FI REACH?
Limited WiFi transmitting distance is another problem.
What lengths will Wi-Fi reach? It isn't easy to answer this question.
When talking about WiFi coverage, we've a lot of things to consider including electricity rate of WiFi device, environment (in house or outdoor) and even more.
Typically, a home/office router (TP-Link) can offer WiFi coverage extends to up to 10 meters interior.
When WiFi devices will work outdoor without barrier, the transmission distance will be much significantly.
To increase the WiFi coverage or distance, you can mount WiFi access point. This gain access to point (or hotspot) has a variety of about 20 meters (66 feet) indoors and a larger range outdoors.
#4. WHAT'S POE?
PoE means 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 supply over single Ethernet cable (Kitten5/6) 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 allow IP video cameras support plug-and-play assembly, which greatly reduced the assembly procedures, and eliminate the necessity of electric power cable and offer.
Today, PoE has two standard including IEEE802.3af, and IEEE802.3at. IEEE802.3af can offer maximum electric power rate is to 15.4 W of DC ability (least 44V DC and 350mA) to each device.
In order to provide power supply for high power intake 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 ability.
PoE technology has been trusted in:
- IP security system ( Camera + NVR)
- VoIP Phones
- WiFi Access Point
- Network Routers
- Commercial devices
#5. CONS AND Benefits 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 ability cable or power supply.
The maximum interconnection distance is 100 meters, which is ten times than Wi-fi. Since data transmission is through wired cable, there is no signal disturbance, no transmission 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 than a traditional network switch, which increased 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 Wireless IP camera.
Making sure the Wireless IP camera is installed within coverage of your Wi-fi router.
For more than one IP camera, PoE is recommended. PoE is a lot reliable than Wi-fi in terms of data transmitting.
Furthermore, an IP camera system predicated on PoE is a lot easier to manage, centralized vitality solution becomes available e.g using uninterruptible power supply (UPS).
From my own investigation of monitoring market, I came across that Wi-fi IP surveillance cameras are widely used for non-professional in house security, and PoE IP cams are installed for outdoor surveillance system. But if you select WiFi IP Camera please read article below.
So how does one determine which cordless IP camera suits your needs?
Firstly, establish what you need. Many customers often don't really know which kind of cellular IP camera suites and would satisfy their needs. Because of this, they get sucked into buying cellular IP camcorders that are beyond what they need.
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 glowing); what precision of data would you like to catch? (HD images with or without music) and most importantly, what is your budget?
Second of all, another essential feature to consider before getting yourself a radio IP camera is the pan and tilt range.
Certainly, this feature will depend on the environment where you want to use the camera.
A wide skillet and tilt range is never an undesirable thing.
Thirdly, zooming capability of the cellular IP camera is also vital.
Ensure that you check the kind of zooming capacity, whether its optical or digital.
Most of the IP cameras in the market are digital, but you will never neglect to find one with optical move.
Fourth, test the gear before purchase.
This is vital, especially when you are buying from your neighborhood electronic digital store.
Always obtain a test installation as this will allow you to look for the picture quality of the camera.
In addition, it will offer you an possibility to learn how to create the equipment in a proper manner to make sure that you get the best image and audio quality.
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