ce este o camera ip
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. Whenever you connect the IP camera to your router, you have to choose one of these, either WiFi or PoE.
Prior to deciding to buy an IP camera or a whole IP camera system, you should analysis the set up environment and check out which functions you want to accomplish.
Wi-fi or PoE, which is the greatest? As a older technician who may have four years in video recording surveillance industry, my response 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 cellular signal (2.4GHz UHF group, 5GHz SHF band).
Obviously, once the IP camera supports WiFi, the camera can connect your router without needing hardwired connection. Wireless can permit IP camera become portable, this is the advantage of Wireless.
But there are two downsides on WiFi, which are; every gadgets require power supply, which means your IP camera still requires cable tv for connection.
So far, I haven't found any IP camcorders are able to operate with battery packs.
#3. WHAT LENGTHS Will WI-FI REACH?
Limited WiFi transmitting distance is another problem.
What lengths does Wi-Fi reach? It's not easy to answer this question.
When discussing WiFi coverage, we have a lot of things to consider including vitality rate of WiFi device, environment (in house or outdoor) plus more.
Typically, a home/office router (TP-Link) can offer WiFi coverage grows to up to 10 meters in house.
When Wireless devices will work outdoor without hurdle, the transmitting distance will be much far.
To increase the WiFi 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 foot) indoors and a greater 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 sole Ethernet cable television (Kitty5/6) is the primary feature of PoE technology.
So long as your IP camera supports 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 assembly, which greatly reduced the installation procedures, and eliminate the necessity of ability cable and supply.
Today, PoE has two standard including IEEE802.3af, and IEEE802.3at. IEEE802.3af can provide maximum power rate is to 15.4 W of DC vitality (minimum amount 44V DC and 350mA) to each device.
To be able to provide power supply for high ability 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 vitality.
PoE technology has been trusted in:
- IP security system ( Camera + NVR)
- VoIP Phones
- WiFi Gain access to 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, no need extra power cable or power supply.
The maximum interconnection distance is 100 meters, which is ten times than Wi-fi. Since data transmitting is through wired cable, there is absolutely no signal disturbance, 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 when compared to a traditional network switch, which increased a little on cost.
#6. Wi-fi VS POE
No best solution, 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 Wi-fi router.
For several IP camera, PoE is recommended. PoE is much reliable than WiFi in terms of data transmission.
Furthermore, an IP camera system predicated on PoE is much easier to manage, centralized electricity solution becomes available e.g using uninterruptible power (UPS).
From my personal investigation of security market, I found that Wireless IP cams are widely used for non-professional indoor home security, and PoE IP video cameras are installed for outdoor monitoring system. But if you choose Wireless IP Camera please read article below.
So how can you determine which wireless IP camera suits your preferences?
Firstly, establish what you need. Many customers often don't really know which type of wireless IP camera suites and would fulfill their needs. Because of this, they get sucked into buying wireless IP cams 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 glowing); what accuracy of data would you like to get? (HD images with or without audio) and most importantly, what's your budget?
Subsequently, another essential feature to consider before getting yourself a wireless IP camera is the skillet and tilt range.
Certainly, this feature will rely upon the environment where you would like to use the camera.
A wide pan and tilt range is never a negative thing.
Thirdly, zooming capacity for the cellular IP camera is also vital.
Ensure that you check the type of zooming capabilities, 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 zoom.
Fourth, test the gear before purchase.
This is vital, in particular when you are buying from your neighborhood electronic digital store.
Always obtain a test set up as this will permit you to determine the picture quality of the camera.
In addition, it will offer you an opportunity to learn how to create the gear in an effective manner to ensure that you find the best image and sound quality.
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source :securitycamerawifi
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