camera wifi ip gsm
WIFI OR PoE FOR IP CAMERA, WHICH MAY BE THE BEST?
#1. NO NEED TO USE BOTH WIFI AND PoE
Yes, you can't use both WiFi 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.
Prior to deciding to buy an IP camera or a complete IP camera system, you should analysis the set up environment and check out which functions you want to accomplish.
Wireless or PoE, which is the better? As a mature technician who has four years in video tutorial surveillance industry, my response to this question is PoE is the advised choice.
#2. WHAT'S WIFI
WiFi is a kind of wireless technology that allows network devices transfer data through cellular indication (2.4GHz UHF strap, 5GHz SHF band).
Obviously, after the IP camera supports WiFi, the camera can hook up your router without needing hardwired connection. WiFi can enable IP camera become portable, this is the advantage of WiFi.
But there are two drawbacks on WiFi, that are; every gadgets require power supply, which means your IP camera still requires cable for connection.
So far, I haven't found any IP cams have the ability to operate with batteries.
#3. HOW FAR DOES WI-FI REACH?
Limited WiFi transmission distance is another problem.
How far does indeed 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 (indoors or outdoor) plus more.
Typically, a home/office router (TP-Link) can offer WiFi coverage extends to up to 10 meters indoor.
When Wi-fi devices are working outdoor without hurdle, the transmission distance will be much much.
To extend the Wireless coverage or distance, you can install WiFi gain access to point. This gain access to point (or hotspot) has a variety around 20 meters (66 legs) indoors and a greater range outdoors.
#4. WHAT'S POE?
PoE stands for Power over Ethernet, this is not a new technology, the first device adopts PoE technology premiered by Cisco in 1999. Transmitting both data and power supply over single Ethernet cable (Kitty5/6) is the primary feature of PoE technology.
So long as your IP camera supports PoE, you just need to connect it to a PoE NVR or PoE switch, then it works. PoE technology allow IP surveillance cameras support plug-and-play installation, which greatly reduced the unit installation procedures, and eliminate the necessity of electricity cable and supply.
Today, PoE has two standard including IEEE802.3af, and IEEE802.3at. IEEE802.3af can provide maximum ability rate is to 15.4 W of DC electric power (minimum 44V DC and 350mA) to each device.
In order to provide power supply for high electricity use 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 power.
PoE technology has been widely used in:
- IP monitoring system ( Camera + NVR)
- VoIP Phones
- WiFi Access Point
- Network Routers
- Industrial devices
#5. CONS AND Advantages OF POE TECHNOLOGY
Let's firstly discuss the advantages of PoE. A PoE IP camera can get the power from the Ethernet cable television, no need extra ability cable or power.
The maximum connection distance is 100 meters, which is ten times than Wi-fi. Since data transmission is through wired cable television, there is absolutely no signal interference, no indication jamming.
For properly working of PoE devices, 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 a lot expensive than a traditional network switch, which increased a little on cost.
#6. WIFI VS POE
No best solution, only right solution. If you wish to install one single IP camera for home monitoring, you can choose to use WiFi IP camera.
Guaranteeing the Wi-fi 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 Wi-fi in terms of data transmission.
Furthermore, an IP camera system based on PoE is much easier to deal with, centralized vitality solution becomes available e.g using uninterruptible power supply (UPS).
From my own investigation of surveillance market, I found that Wireless IP video cameras are trusted for non-professional indoor security, and PoE IP cameras are installed for outdoor monitoring system. But if you select Wireless IP Camera please read article below.
So how can you determine which cordless IP camera suits your needs?
Firstly, establish the thing you need. Many purchasers 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 cordless 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 accuracy of data do you want to take? (HD images with or without sound) and most importantly, what's your budget?
Second of all, another essential feature to consider before sometimes a wireless IP camera is the pan and tilt range.
Of course, this feature will depend on the environment where you want to use the camera.
A wide skillet and tilt range is never a terrible thing.
Thirdly, zooming capacity for the cordless IP camera is also vital.
Make sure that you check the sort of zooming potential, whether its optical or digital.
A lot 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, particularly when you are buying from your local electronic store.
Always request for a test setup as this will enable you to determine the display quality of the camera.
In addition, it will give you an possibility to learn how to create the equipment in an effective manner to ensure that you have the best image and sound quality.
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source :securitycamerawifi
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