how a ip camera works

how a ip camera works You should read article below before you buy IP Camera.

WIFI OR PoE FOR IP CAMERA, WHICH MAY BE THE BEST?


#1. YOU DON'T NEED TO USE BOTH Wireless AND PoE


Yes, you can't use both Wi-fi and PoE at same time. Once you hook up the IP camera to your router, you have to choose one of these, either Wireless or PoE.


Before you decide to buy an IP camera or a whole IP camera system, you should analysis the unit installation 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 monitoring industry, my response to this question is PoE is the recommended choice.



#2. WHAT'S WIFI


WiFi is a kind of wireless technology that allows network devices transfer data through wireless signal (2.4GHz UHF band, 5GHz SHF group).


Obviously, once 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 Wi-fi.


But there are two drawbacks on WiFi, that happen to be; every electronic devices require power supply, that 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 battery power.



#3. HOW FAR DOES 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've many things to consider including electricity rate of Wireless device, environment (inside or outdoor) and even more.


Typically, a home/office router (TP-Link) provides WiFi coverage reaches up to 10 meters interior.


When Wireless devices are working outdoor without barrier, the transmitting distance will be much significantly.


To increase the Wireless coverage or distance, you can set up WiFi gain access to point. This gain access to point (or hotspot) has a variety of about 20 meters (66 toes) indoors and a greater range outdoors.



#4. WHAT'S POE?


PoE means Power over Ethernet, this isn't a fresh technology, the first device adopts PoE technology was launched by Cisco in 1999. Transmitting both data and power supply over one Ethernet wire (Feline5/6) is the key 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 permit IP camcorders support plug-and-play installation, which greatly reduced the unit installation procedures, and eliminate 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 electric power (bare minimum 44V DC and 350mA) to each device.


To be able to provide power for high vitality consumption 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 electric power.


PoE technology has been widely used in:

-           IP monitoring system ( Camera + NVR)

-           VoIP Phones

-           WiFi Gain access to Point

-           Network Routers

-           Commercial devices

how a ip camera works

#5. Downsides AND Advantages OF POE TECHNOLOGY


Let's firstly discuss the benefits of PoE. A PoE IP camera can get the energy from the Ethernet cable television, no need extra electric power cable or power supply.


The maximum interconnection distance is 100 meters, which is ten times than Wireless. Since data transmitting is through wired cable, there is absolutely no signal disturbance, no signal jamming.


For properly working of PoE devices, Power 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 much expensive when compared to a traditional network change, which increased a little on cost.



#6. Wireless VS POE


No best solution, only right solution. If you wish to install one single IP camera for home monitoring, you can opt for WiFi IP camera.

Making sure the WiFi 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 Wireless in terms of data transmitting.


Furthermore, an IP camera system based on PoE is much easier to take care of, centralized electricity solution becomes available e.g using uninterruptible power supply (UPS).


From my personal investigation of security market, I came across that WiFi IP surveillance cameras are widely used for non-professional in house security, and PoE IP surveillance cameras are installed for outdoor monitoring system. But if you select Wi-fi IP Camera please read article below.




So how would you determine which cordless IP camera suits your preferences?


Firstly, establish what you need. Many purchasers often don't really know which kind of cordless IP camera suites and would gratify their needs. Because of this, they get sucked into buying wireless IP surveillance 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 excellent); what accuracy of data do you want to get? (HD images with or without sound) and most importantly, what is your budget?


 

Subsequently, another essential feature to consider before getting yourself a radio IP camera is the pan and tilt range.


Of course, this feature will depend on the surroundings where you want to use the camera.


A broad pan 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 kind of zooming functionality, 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 focus.


Fourth, test the gear before purchase.

That is vital, especially when you are buying from your neighborhood electronic digital store.


Always request for a test installation as this will permit you to look for the picture quality of the camera.


Furthermore, it will offer you an opportunity to learn how to set up the gear in an effective manner to make certain you find the best image and sound quality.



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source :securitycamerawifi

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