Please Note..==this page is in editing mode and can not finished yet so i can update it regularly so if u want to ask anything please ask... thank you
In Indian market there are many CCTV brands which provide various range of CCTV to the customer. So while buying it is very difficult to choose proper cctv for our required area because various lenses are used for CCTV so it little bit confuse to choose accurate product for our purpose .
Here i will explain you to various model of CCTV with their specification with the help of diagram so you can understand how much area will cover by that CCTV or how long it will cover with proper clearance.
while classifying the CCTV we can compare various aspects. The very first thing for comparing CCTV is their sensor pixel density or we can say the resolution of that particular CCTV means more the value then more will be clarity. Following diagram explain about resolution. The following are the general CCTV resolution 700TVL, 1MP, 1.3MP, 2MP, 3MP, 5MP, 6MP, 4K and still coming more ....daily
The second thing for comparing CCTV is its lenses. It decides the viewing angle of camera. Means if the the lens size is smaller then it will cover more area but cannot cover longer distance object clearly but if the lens size increased then it will cover less viewing angle but cover objects at larger distance clearly The following diagram will explain you it clearly
The following are the lens sizes of camera
2.8mm, 3.6mm, 4mm, 6mm, 8mm, 12mm, 16mm, 22mm, 25mm
and so on...
Following diagram demonstrate how many area will cover by the camera on various lens and resolution configuration. and available CCTVs in market.
A step by step guide to starting WiFi hotspot business in India.
Friends If u live in India and want to make business. the internet service providing business is waiting for you . following tutorial is about to start WiFi hotspot business in India. If you studied hardware networking or any networking course then its good for you but if u have no knowledge in networking then don't worry follow this tutorial and u can successfully set your own WiFi internet service provider .while writing this blog i am also starting a WiFi hot-spot business in Maharashtra so i will update according my work which problem i faced and how i solved these problems.
Our PM announce that India will be fully digitalis in upcoming years . But till now there are lot of areas in India where internet is not available and in lot of place it available but in very slow speed so there are so many opportunities in ISP (Internet Service Provider) industries. For distributing internet to customers lot of Technics are used like cable , fiber optics, mobiles , Wi-max , and WiFi, In this tutorial we will discus about WiFi distribution of internet and providing vouchers to customer like telecom companies provide us vouchers . For distributing internet to customers a legal licence is require and investment for this type of license is very expensive so i will suggest you to forget about getting ISP license and use franchises provided by the available ISP providers in India.
First I will explain difference between ISP,WISP, and WiFi hot-spot
ISP stands for internet service provider means you can buy a bulk bandwidth from any all India permitted ISP and use the license of that company and give some percentage of your revenue to that company (Like Franchise).and then distribute the internet to the customers with the help of Cables like fiber optics, coaxial, twisted pair, or CAT 5 . Using any of above type distribution have its own advantages and disadvantages .in following ISP style two ISP inputs are taken for redundancy in network.Following diagram shows the structure of an ISP
WISP stands for wireless internet service provider its same as ISP expecting that the distribution part is carried by wireless devices means between office and cuctmer home a wireless link is setup. The main disadvantage of this type is that interference in wireless link to reduce speed but proper planing will overcome this. Following diagram show the structure of an wisp.
WiFi hot-spot means place the WiFi routers 50 to 150 meters apart and make a large wireless network. The main disadvantage of this type of distribution is we need to connect all router to the internet (expect some repeater)and lot router of require because the range limitation of the mobile devices and routers.
Following Diagram shows the Wifi hot-spot structure
source
The investment for this type of project is totally depend on the area u are distributing WiFi and how much speed u provide to your customers. The minimum investment is near about 100000 Indian rupees.
Before starting we need to know the speed mathematics of internet because u need to know that what speed you provide to customer and how much customer get sufficient speed
When we buy any internet connection then they said its a 1 Mbps plan but when we actually download any content then the speed is 120 kbps to 160 kbps because its a 1:8 connection so while buying bandwidth please choose 1:1 connection. In India bandwidth provider provide the following high speed plan
1)10 Mbps
2)20 Mbps
3)45 Mbps
The rates are generally 1300 to 1800 per Mbps excluding taxes
Or some provides other plans also
Now i explain to you how i started WiFi business step by step
I live in rural area there is no competition only BSNL broadband is available but due to their service people are not so happy. And if think about other telecom providers, they give good speed on mobile devices but their minimum recharge for 1 GB is above 100 rs and reliance Jio are not started yet but we are ready to give cheaper rates than reliance Jio so we have chance to start out business here. Now we started to find any bandwidth provider but due to rural area we require more time to find bandwidth provider. because every bandwidth provider have a BTS list like Air-tel, Vodafone and Idea for giving connectivity but all BTS are not listed in that list because BTS are continuous upgraded by the telecom companies so we need to contact concern person in telecom sector in my area and request to him for giving the Mux Ids in my area. Note that every tower of telecom company is called as BTS but not all towers are capable to provide data(according to technical person in telecom).
Mux Id is a unique id of a particular telecom service provider. I give this MUX id to the bandwidth provider and he gives me positive reply.Now feel relax but there is another problem the location of that tower and my village is about 7 KM . Digging cable is not possible because cost estimation is more than my budget so i find another alternative is PtP link. For that PtP link I prefers Ubinquity product because the cost is very affordable and the product community is very big so u can get answer all of your question. If you have any queries about these product u can feel free to contact me . I Use power beam 400 for my PtP link it provides 100 Mbps throughput and its sufficient for me because i am started with just 10 Mbps plan.
Now you thought how to make point to point link then follow the following steps..
1)Assumes both devices are in factory default setting.
2)connect the one device with help of LAN cable to the PC.
3)Now configure the ip address of pc in rang 192.168.1.x(expect 192.168.1.20) see following steps
open network and sharing center
now click on local area connection
Now click on properties
Now click on internet protocol version 4(tcp/ipv4)
Now change the following fields only
now click OK and now your PC is ready to interact with power beam or any ubinquity devices.
4) now open any browser and enter IP address 192.168.1.20.
5)It will open the following window.
6)now enter the username and password you wanted.
7)now it will show the login window.
8)follow the following tutorial to make a layer 2 transparent ptp link using Ubinquity devices.
These instructions assume that your radio is set to FACTORY DEFAULT values. Please restore to factory defaults before proceeding. This is critical, especially if you are troubleshooting a problem.
With your Windows 7 PC or Mac computer configured to the 192.168.1.x subnet, connect it to the radio using an Ethernet cable. The Ethernet port is auto-sensing. You are not required to use a cross-over cable.
Using a web browser, enter 192.168.1.20 as the "URL" to gain access to the radio's management console.
Enter "ubnt" as the administration account and "ubnt" as the password.
Configuration Instructions (change ONLY the items shown, leaving others at default values):
'''For the radio labeled "192.168.1.2" above:'''
A. Choose the |Wireless| tab, and change only:
Wireless Mode: Access Point
WDS: [X] Enable
Press [Change] button
B. Choose |Network| tab, and change only:
IP Address: 192.168.1.2
Press [Change] button
Press [Apply] button
DONE
'''For the radio labeled "192.168.1.3" above:'''
Repeat Step 1 through 4 above, then...
C. Choose the |Wireless| tab, and change only:
Wireless Mode: Station
WDS: [X] Enable
Press [Change] button
D. Choose |Network| tab, and change only:
IP Address: 192.168.1.3
Press [Change] button
E. Press [Apply] button
DONE
'''For the Cable/DSL Modem in the diagram above:'''
F. Reboot or power cycle the modem off and on before using this link.
DONE.
NOTES:
'''1''' - Use ''Ubiquiti ToughCable Pro'' shielded twisted pair data cable between your Power over Ethernet adapter and your radio. If your radio is being co-located in an area with a VHF pager, FM or TV broadcast transmitter, use ''Ubiquiti ToughCable Carrier'' cable. The following data sheet will open in this same window:
'''2''' - Secure your radios. Modify the default administration account name and password now. From the web management console...
Select |System| tab > System Accounts
Administrative Username [change it]
Hover over icon to the right, "Change Password" and modify it
Press [Change] button. Press [Apply] Button
'''3''' - Secure your wireless signal. Encrypt your wireless connection. From the web management console...
Select the |Wireless| tab > Wireless Security
Security > WPA2-AES
WPA Preshared Key: enter something long, but memorable to you
Press the [Change] button.Press the [Apply] button
'''4''' - You can replace the block of equipment after "Switch" with anything that you wish to bridge, including a SOHO Wi-Fi router! Remember, this radio configuration acts like a simple Cat-5 cable.
If you have want to see video tutorial then following video shows it
Now time to make agreement between you and your bandwidth provider for that you require following documents.
1)Id proof
2)light bill
3)rent agreement (need if you rent an office from third party)
Now you need to fill their form and print on bond paper and notarized it and attached the above documents .Now need to mail the soft copy of these documents to that company and send hard copy by courier.
Now its time to wait....Because this process takes 45 to 100 working days depends on providers.
The following steps are applicable for local installed controller provided by ubinquity and Unify AP
Now its time to buy products for distribution. Following products are required . note that you need to increase only AP if you want to increase your working area.
Follow the link if you want to buy equipment
1)Any Gigabyte router – you can choose any router with DHCP enabled. In my case i use microtik router board 3011 because my project contain mix clients means LAN user and mobile user and the unify controller does not support for controlling speed of computers in local area network computers till now in feature i hope they provide this type of feature in unify controller.
2)Simple laptop or PC –The controller software is provided by unify for free . we need to install that software in PC or laptop which is connected in LAN network . If we need to plan voucher based WiFi hotspot then we need to continuously switched ON that PC or laptop otherwise only need for configuration.
3)Unify AP –This is the similar type of WiFi home router but it has more functionality and note that unify controller only support these routers it can not support any other routers . following are the models are available in unify router.
4)Lite beam ac(optional)- If you want to increase your working area and it is not possible to connect routers by using LAN cable then you can use these devices for connecting your unify AP like any point to point connection.
You can begin a WiFi hot spot business from anywhere like your home, your hotel, your school, your town, your village or anywhere you want. In this tutorial i would like to introduce how to setup WiFi hot spot provide to your customer on voucher basis like 50 Rs/GB or decide your own plans. The following things are needed to start a WiFi hot spot business . 1)Internet Connection. 2)Network Equipment (totally depends on that how you distribute your network).to buy
