ip camera 2017 pantip
WIFI OR PoE FOR IP CAMERA, WHICH MAY BE THE BEST?
#1. YOU DON'T NEED TO USE BOTH Wi-fi AND PoE
Yes, you can't use both Wireless and PoE at same time. When you connect the IP camera to your router, you have to choose one of them, either Wi-fi or PoE.
Prior to deciding to buy an IP camera or a complete IP camera system, you should analysis the installation environment and check out which functions you want to accomplish.
WiFi or PoE, which is the foremost? As a older technician that has four years in training video surveillance industry, my answer 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 cordless sign (2.4GHz UHF strap, 5GHz SHF strap).
Obviously, once the IP camera helps Wi-fi, the camera can hook up your router without needing hardwired connection. WiFi can permit IP camera become portable, this is the advantage of Wi-fi.
But there are two downsides on WiFi, that are; every gadgets require power, which means your IP camera still requires cable for connection.
So far, I haven't found any IP surveillance cameras have the ability to operate with electric batteries.
#3. WHAT LENGTHS Will 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 discussing WiFi coverage, we have a lot of things to consider including power rate of Wi-fi device, environment (inside or outdoor) and much more.
Typically, a home/office router (TP-Link) provides WiFi coverage reaches up to 10 meters interior.
When WiFi devices are working outdoor without hurdle, the transmission distance will be much much.
To increase the WiFi coverage or distance, you can set up WiFi access point. Such an access point (or hotspot) has a variety 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 over solo Ethernet cable tv (Cat5/6) is the main feature of PoE technology.
So long as your IP camera facilitates PoE, you just need to hook up 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 get rid of the necessity of vitality cable and supply.
Today, PoE has two standard including IEEE802.3af, and IEEE802.3at. IEEE802.3af can provide maximum vitality rate is to 15.4 W of DC power (minimum 44V DC and 350mA) to each device.
To be able to provide power supply for high electricity intake devices, the IEEE relationship made another new standard - IEEE802.3at, this standard also known as PoE+ or PoE plus, provides up to 25.5 W of electricity.
PoE technology has been widely used in:
- IP security system ( Camera + NVR)
- VoIP Phones
- WiFi Gain access to Point
- Network Routers
- Commercial devices
#5. Disadvantages AND Benefits OF POE TECHNOLOGY
Let's first of all discuss the advantages of PoE. A PoE IP camera can get the power from the Ethernet wire, no need extra ability cable or power supply.
The maximum interconnection distance is 100 meters, which is ten times than Wireless. Since data transmission is through wired cable connection, there is absolutely no signal interference, no signal 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 just a little on cost.
#6. WIFI VS POE
No best answer, only right solution. If you wish to install a unitary IP camera for home monitoring, you can opt for Wi-fi IP camera.
Guaranteeing the Wi-fi IP camera is installed within coverage of your WiFi router.
For several IP camera, PoE is recommended. PoE is much reliable than Wireless in conditions of data transmission.
Furthermore, an IP camera system based on PoE is much easier to manage, centralized electricity solution becomes available e.g using uninterruptible power (UPS).
From my personal investigation of surveillance market, I came across that Wi-fi IP camcorders are trusted for non-professional in house home security, and PoE IP cams are installed for outdoor monitoring system. But if you select WiFi IP Camera please read article below.
So how would you determine which wireless IP camera suits your needs?
Firstly, establish what you need. Many purchasers often don't really know which type of cellular IP camera suites and would meet their needs. As a result, 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 located in? (Hallway, outdoor, low light or shiny); what accuracy of data do you want to get? (HD images with or without sound) and most importantly, what's your budget?
Subsequently, another essential feature to consider before sometimes a wireless IP camera is the pan and tilt range.
Needless to say, this feature will depend on the environment where you would like to use the camera.
A wide pan and tilt range is never a terrible thing.
Thirdly, zooming capability of the wireless IP camera is also vital.
Make sure that you check the type of zooming ability, whether its optical or digital.
A lot of the IP cameras in the market are digital, but you will never fail to find one with optical move.
Fourth, test the gear before purchase.
This is vital, particularly when you are buying from your local electronic store.
Always request for a test installation as this will permit you to determine the picture quality of the camera.
Furthermore, it will offer you an chance to learn how to set up the gear in an effective manner to make certain you find the best image and audio tracks quality.
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source :securitycamerawifi
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