Thursday, February 4, 2016

Create lan to connect laptop

Create lan to connect laptop


In this wireless world of internet connections, there is the LAN way to connect 2 PC desktops or laptops along with the quicker WiFi ad hoc internet connection method comes into play. However, not everybody has a wireless card installed on their PC / computers, the LAN internet connection, i.e. to create a local area network (LAN) is the origin of sharing internet and files/folders for which the steps required to create this connection on Windows 7 or Vista are given as follows.

LAN ethernet cableLearn: Share Internet Connection Via Wifi Hotspot, Bluetooth and USB Tethering

Steps to Connect your PC with LAN Internet Connection with Another PC

  1. At first, you need to go out and buy the straight patch Ethernet LAN cable. Make sure that “patch” or “crossover” is written on the cord.
  2. Connect them to both the computers.
  3. Go to “Network and Sharing Center” through the Control Panel.
  4. Select “Network Connection” and right click Local Area Network connection and select “Properties”. image: http://img.deepknowhow.com/2015/05/local-area-connection-properties_zuzro6.jpg
    local-area-connection-properties
  5. Now select “Internet Protocol Version 4(TCP/IPv4)” and click “Properties”.
  6. Now, once you are inside the TCP/IP properties of your computer, click “Use the following IP” and enter 192.168.0.1 as IP address and 255.255.255.0 as subnet mask. Leave the other details blank and click “OK”. image: http://img.deepknowhow.com/2015/05/internetprotocolipproperties_w2skxr.jpg
    internet protocol ip properties
  7. Now go to TCP/IP properties of the second computer and enter the same details except the IP address, which should be 192.168.0.2 and click “OK”.
  8. Done. Now the networks are operatable. You might need to restart both the computers in some cases.
  9. Now, if you’re looking to SHARE the internet connection between 2 computers, go to Local Area Network properties again and click on the Sharing tab. Select “enable internet connection sharing”.
  10. To share files and folders between the 2 computers, go to the properties of that file/folder and select Sharing tab. Click “Share” to share on the network.

how to share data via lan cable.

how to share data via lan cable.


In this article, you will find out  how to Send files from one computer to another with Lan cable (cat5). I never liked using big pen drives to share large data ( like big games, movies etc) so the only thing I am left with, was using LAN cable.

Send files from one computer to another

When to use LAN cable Send files from one computer to another
It would be very tiring to keep on inserting and removing pen drive again and again. And if you hate this too, then you have come to right place, after reading this article I am sure you will able to send and receive files using Lan cable.

Advantage of LAN cable over others

  • Fast data transfer.
  • You don’t have to stand there and waste your time. Do the setup once and you can move on to your other work.
  • Looks cool

Things that you required

  • Two laptops (mandatory)
  • A lan cable (obviously)
  • Little bit of your time and patience (only if it’s your first time)
Step 1
Connect one computer to another using LAN cable.
Step 2
OK, now you have to enable sharing option on both computers.
Go to Control Panel> Network and Internet> Network and Sharing Center > Advanced sharing settings.
enable sharing option .
Enable sharing option
Make sure you turn on network detection and turn off password protection off.
Step 3
Bring both the computers on the same network.
1. Open control panel Control Panel >> Network and Internet >>Network Connections.
connect two computer using a lan cable
2. You will see Local Area Connection 2.
3. Right click it and navigates to properties.
4. You will see TCP/ ivp4 option there and select its properties.
Connect two computer using a lan cable
5. Select this use the following ip address

Put the following value on 1st computer

  • Ip address 192.168.1.1          
  • Subnet mask 225.225.225.0
  • Default gateway 192.168.1.3
                                                
1st laptop ip address

Put the following value on 2nd computer

  • Ip address 192.168.1.3
  • Subnet mask 225.225.225.0
  • Default gateway 192.168.1.1
2nd laptop ip address
2nd laptop ip address
Basically what we are doing is keeping the subnet mask same and changing the IP address. You might have seen others values on different websites, all are correct but if you are not familiar with networking I would suggest that you stick to these values only.
If everything works right, you will see the two computer name in the Networks.
two computer connected under same network using lan
Two computer connected under the same network using lan
Step 4

Share a folder on LAN

Assuming that you have connected the cable properly and enable the sharing option now it’s time Send files from one computer to another, this is very simple
1.Select the folder you want to share, right-click it.
2. Select share this >> specific people.
share dataa using lan cable
3. On the drop down menu select everyone >> add >> click share.
How to share a folder on lan

Wednesday, February 3, 2016

camera installation method


The idea of drilling holes through the walls of your house to run video and power cables for a security camera system might seem daunting; but many security systems come in all-included packages that make setting up your surveillance system a breeze. Read on for guidance on buying and installing your own home camera system.
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Method 1
Preparing Your Home

  1. Image titled Install a Security Camera System for a House Step 1
    1
    Make a diagram of your surveillance needs. It is both expensive and impractical to monitor every square inch of your house, so you need to prioritize what areas you want to watch the most. Draw up a rough diagram of your house or print out the blueprints and note where you might want to place cameras. When you are done, check out each location to make sure it is not blocked by anything and provides the best view possible. You may want cameras for:
    • Front and back doors.
    • Off-Street Windows
    • Large common spaces
    • Driveways
    • Porches
    • Stairways[1]
  2. Image titled Install a Security Camera System for a House Step 2
    2
    Buy the right package to suit your needs. You can buy each piece individually, but it is generally cheaper and easier to buy bundled security systems. At minimum your system should have 1-3 cameras, a DVR (digital video recorder), appropriate wiring (siamese and BNC cables), and power cords. Unless you are choosing to monitor a large area, wireless cameras with wall mounting should cover your needs.
    • Basic Home Security: Get a package with 2-3 outdoor cameras (to monitor doors), and a DVR with at least 3 days of recording time.
    • Monitoring Valuables/Young Children: 1-3 indoor wireless cameras can cover a small room effectively and stream the footage right to your computer.
  3. Image titled Install a Security Camera System for a House Step 3
    3
    Alternatively, buy your cameras individually. Once you know how many cameras you need, you'll need to think about what specific cameras you want. A home surveillance system can cost anywhere from a few hundred dollars to well over a thousand, so make sure you consider the type of cameras you need before buying -- the features below should be clearly labeled on the box. While you can buy all of the parts separately, buying a full "surveillance set" is usually cheaper and easier to install.
    • Wireless vs. Wired: Wireless cameras are easy to set-up without drilling or running cables through your house, but the quality can be sub-par the further they get away from the receiver. If you are covering a big area, go wired, but most houses find wireless and easier set-up process.
    • Indoor or Outdoor: Cameras that are not made to be place outside will quickly break when exposed to rain and humidity, so be sure to choose accordingly.
    • Motion Sensing: Some cameras will only record when they notice motion, saving space and energy while only capturing footage when someone is in the room.
    • Remote Viewing: Many high-end cameras offer the ability to stream their footage to your phone or laptop anywhere in the world, making it possible to check out your house through a provided program or app.[2]
  4. Image titled Install a Security Camera System for a House Step 4
    4
    Set up a recording device and monitor. In order to store and view your footage you need a Digital Video Recorder (DVR). This device receives all of the video feeds and broadcasts them onto a monitor, usually a computer screen or small TV. DVRs have a variety of memory capacities that allow them to store a certain amount of video, from hundreds of hours to one day's worth of footage.
    • If you buy a complete surveillance set the DVR is usually included with the camera.
    • Network Video Recorders (NVR) and analog recorders (VCRs), also available for purchase, work the same way as a DVR, using an internet signal (NVR) or blank tapes (VCR) to record instead of a digital hard-drive. The following installation tips will work here as well.
  5. Image titled Install a Security Camera System for a House Step 5
    5
    Test your equipment before installing. Make sure your cables, DVR, cameras, and monitor all work by connecting each one before you install anything.[3]

Method 2
Installing a Camera

  1. Image titled Install a Security Camera System for a House Step 6
    1
    Choose a high, broad angle for your camera. The best angle of any room is usually looking down from the corner where the ceiling meets the walls. Make sure you can clearly see all entries and exits and that the camera is near a power outlet.
    • If you are mounting a camera outside, place it above 10ft so that it cannot be easily knocked down.[4]
  2. Image titled Install a Security Camera System for a House Step 7
    2
    Mount your camera to the wall. Some cameras come with sticky pads to adhere your camera to the wall, but screwing your camera in is the safest way to mount your cameras long-term. While every camera is different, most of them can be mounted the same way:
    • Place the mount in it's desired location.
    • Using a sharpie, make marks on the wall where each screw should go.
    • Drill a hole for each screw using an electric drill
    • Hammer in any molding pins.
    • Screw the mount into the wall.
    • Position the camera to your desired angle.[5]
  3. Image titled Install a Security Camera System for a House Step 8
    3
    Attach your camera to a power source. Almost all cameras come with a power adaptor that plugs into a normal wall socket. Plug the small, round end into the power input on the back of the camera and plug the other end into the outlet.
    • If your power adaptor is missing or broken, contact your manufacturer.
  4. Image titled Install a Security Camera System for a House Step 9
    4
    Attach wired camera to your DVR. Surveillance equipment is connected using a BNC (Bayonet Neill–Concelman) connection. BNC cables are simple to use -- they are identical on both sides and you simply plug them into the appropriate port, turning a small nut on the end to lock it in place. Plug one end into your camera's "Output" and the other into one of the DVR "Input" ports.
    • Note which input you plug into -- this is the input your DVR must be set to in order to view your camera's video.
    • If your cable does not have a BNC connection you can buy a simple BNC adaptor online or at a hardware store. This will slip onto the end of your cable to make it BNC compatible.[6]
  5. Image titled Install a Security Camera System for a House Step 10
    5
    Link wireless cameras to your computer. Wireless cameras will come with a software disc that you need to install to view your feeds. Follow the on-screen instructions to access your cameras.[7]
    • Some cameras have a small receiver that attaches to your computer through a USB port. Make sure this is properly attached.
    • Write down your camera's IP address (ex. 192.168.0.5) if provided -- this number can be typed into any web browser to view your camera remotely.[8]
  6. Image titled Install a Security Camera System for a House Step 11
    6
    Attach the monitor to the DVR. This connection frequently uses a BNC cable as well, but some DVR's can attach with HDMI cables, or coaxial cables. Using your preferred connection, attach one end to the DVR's "Output" port and the other to the monitor's "Input."
    • You can hook up as many cameras as your DVR has inputs -- it will automatically record every camera you install.
    • Note which input you plug into-- this is the input you need to choose to see your cameras.
  7. Image titled Install a Security Camera System for a House Step 12
    7
    Troubleshoot any connection issues. Check that the camera, DVR, and monitor are all hooked up to a power supply and turned on. Make sure your cables are securely attached and that you have selected the right inputs for your DVR and monitor. Some monitors will display every camera at the same time, others have "input" buttons that allow you to switch between cameras.

Method 3
Consolidating your Surveillance System

  1. Image titled Install a Security Camera System for a House Step 13
    1
    Create a central "surveillance hub." When you are wiring a lot of cameras at once, you'll need one simple place to bring all of the feeds together to your DVR. This should be a place that is easy to access, and where you can comfortably run wires from anywhere in the house. Attics, offices, and your internet router all make good places to base your surveillance system.
    • You should only need one DVR for all of your cameras.
  2. Image titled Install a Security Camera System for a House Step 14
    2
    Use Siamese cables to wire your system effectively. The most common surveillance cable is a Siamese cable, named because it consists of two cables attached together. One is for power, and the other is for video. This means you will only have to run one wire through your house to set up each camera. The cable is usually sold as RG59 or RG6.[9]
    • The braided red and black side is for power. Red is positive and black is negative.
    • The singular, cylindrical cable is for video. Each end will have either a BNC attachment or a coaxial cable.
  3. Image titled Install a Security Camera System for a House Step 15
    3
    Use a power supply box to power multiple cameras through one outlet. Power boxes, available online and in hardware stores for $30-$50, allow you to power you cameras through a single wall outlet. They come with multiple ports, and are great for powering close-together cameras or cameras that aren't near an outlet, like attic cameras. However, you will need to run lengthy amounts of wire to attach each camera to the same box.
    • Always attach the cameras before hooking the box to electricity.
    • Make sure you buy a power supply box big enough to power each one of your cameras. They should list how many outlets they support on the box.
  4. Image titled Install a Security Camera System for a House Step 16
    4
    Attach each video cable to a separate DVR port. Your DVR can handle multiple cameras at once, allowing you to record every room in the house with only one box. Your monitor will then display every camera, or you will have to cycle through them using the "input" button on your DVR.
  5. Image titled Install a Security Camera System for a House Step 17
    5
    Hide your wires. To have a truly professional looking system you can run your cables through the walls and towards your surveillance hub. Be sure you know the layout of your walls and the location of any pipes, cables, or studs as you begin running wires. Running cables requires you to drill a hole in the wall, then thread the cable through the walls to your DVR through open spaces in your house, usually the attic.
    • If you are not comfortable drilling into your walls and running cables through, call a professional carpenter or handyman to take care of the cabling.
    • You can also secure cables to the walls or baseboards using a staple gun.
    • Consider hiding cables under rugs, but tape them down so that no one accidentally trips.
  6. Image titled Install a Security Camera System for a House Step 18
    6
    Alternatively, call home-security specialists to set up a custom system. There are many home-security companies that will install cameras, motion sensors, and automatic emergency calling for you, though they cost much more than a typical DIY installation. However, if you have a large house, are uncomfortable with wiring, or want extra features like motion-sensors and alarm systems, call a security firm near you.
    • ADT, LifeShield, and SafeShield are larger, nationwide providers of home security systems.

home wiring of inverter


Methods For Circuiting UPS And Inverter With The Wiring Of House (UPS Wiring)

Learn how to circuit UPS with household appliances like fans, tube lights, energy savers, computers etc. The given methods are also for circuiting power inverters with appliances.

Method No. 1:
Without connecting “output neutral” of UPS or Power Inverter with appliances, and directly providing common neutral of home.
Circuit_Diagram_No_7 - Benign Blog
If the above circuit does not work, take a piece of wire and connect “output neutral” of power inverter or UPS with neutral wiring of home. The circuit will be closed and appliances will start working. Now, if you do this, never ever, I repeat never ever reverse the polarity of input or output or you will not only damage the UPS but also cause the short circuit. So, be careful.

Circuit_Diagram_No_9 - Benign Blog
– Red colour indicates the live/hot/electricity providing wire, and black colour is used for neutral/cold wire. Red arrows are representing terminals of UPS for live wires, and black arrows are representing neutral terminals.

Circuit_Diagram_No_5 - Benign Blog
Circuit_Diagram_No_6 - Benign Blog
========================================================================


Method No. 2:
Circuiting UPS or Power Inverter with appliances by supplying both neutral and live wires coming directly from UPS.
Circuit_Diagram_No_8 - Benign Blog
This is the simplest and straight forward methodology of connecting appliances with power inverters or UPS’. This type of wiring is especially required for those UPS’ which can not work with single line wiring because such UPS’ are designed to disconnect both live and neutral circuits of input inside them when output is switched to batteries backup. If you want to connect sensitive electronic devices like servers, computers, TVs, sound systems, disc players etc, you should prefer this type of wiring, or simply plug in using an Extension Cord.
Safety: Methods described here are for reference purpose only. Make sure you get your UPS or inverter circuited by a trained personnel

Thursday, September 24, 2015

DC motor need a stater

DC motor need a stater




what is difference between holding current and latching current?

what is difference between holding current and latching current?


LATCHING CURRENT is another name for gate trigger current -- it's a measure of
the minimum current you have to apply to the gate of an SCR to be guaranteed it
will turn on (given that there's a minimum voltage between anode and cathode).


Holding current is the specified minimum current that must be flowing from
anode to cathode (with no gate current) and still be guaranteed that the SCR
will not turn off.

As an example, the latching (gate trigger) current for a 2N5062 (logic level
SCR in TO-92 pkg) is 350 uA over the entire temp range, and the holding current
is10 mA over temp.

Saturday, August 29, 2015

Exact difference b/w between earthing, grounding and neutral?

Exact difference b/w between earthing, grounding and neutral?

Electrical$ world

 

 


  • Neutral

    Neutral is return path for an AC circuit which is supposed to carry current in normal condition. This current may be because of many reasons, primarily because of phase current imbalance and some time because 3rd and 5th harmonics also.
     
  • Earthing means connecting the dead part (it means the part which does not carries current under normal condition) to the earth. For example electrical equipment’s frames, enclosures, supports etc.
    While grounding means connecting the live part (it means the part which carries current under normal condition) to the earth. For example neutral of power transformer.

  • The purpose of earthing is to minimize risk of receiving an electric shock if touching metal parts when a fault is present.
    While the purpose of grounding is the protections of power system equipment and to provide an effective return path from the machine to the power source. For example grounding of neutral point of a star connected transformer.

  • Ground is a source for unwanted currents and also as a return path for main current some times. While earthing is done not for return path but only for protection of delicate equipments.