Showing posts with label DoItYourself. Show all posts
Showing posts with label DoItYourself. Show all posts

Thursday, November 1, 2012

CCTV Camera - Do-It-Yourself Installation Guide

CCTV Camera - Do-It-Yourself Installation Guide


Introduction:



CCTV Camera - Do-It-Yourself Installation Guide


This guide is written for those who do need video security and can't afford costly installation services, or if the CCTV installer is not available in your area - the later is more common than one could think. We will cover most common security equipment types, as it is virtually impossible to go over such a wide rang of different security cameras and recording/video processing equipment available on the market.


Component Shelf

CCTV Camera - Do-It-Yourself Installation Guide


I assume anyone considering do-it-yourself CCTV installation has basic knowledge of wiring techniques and practices. I am not to be held responsible or liable for damages to the equipment due to mishandling or misuse. Remember; during the installation always pay attention to safety. Working at heights and using tools can be dangerous, please follow all safety practices. Lets jump right to it now.



CCTV Camera - Do-It-Yourself Installation Guide

CCTV Camera - Do-It-Yourself Installation Guide


Planning: First step of any camera installation is to plan camera and monitoring equipment locations. When planning for camera locations please take in consideration light condition, never install cameras in low light room pointing straight into the sunny area it will add glare to the picture, even if your camera has back light compensation it will not be enough. Use infrared cameras for very dark conditions and/or B/W cameras with as low LUX number as possible. I am not going to discuss proper equipment selection, as this was subject of my last article.

Selecting the best possible camera locations is not easy, and will directly impact the camera views. Besides light conditions, the distance to the monitoring object is equally important. There are many different types and focal lengths of lenses; your selection will depend on light condition and distance from the camera to the monitoring object. In small rooms around 500sq. ft. cameras with standard 3.6mm lens should be OK. Keep in mind that most bullet and board type of cameras come with 3.6mm lens, the greater the distance to the monitoring object the longer focal length of the lens will be needed. There is no ease way of judging lens selection, you can eider guess or buy professional lens selector tool.. Alternatively you can start with your lens selection and if needed get longer or shorter focal length lens later. Other option as far as lens selection goes, is to use variable focus lens, which is very versatile approach and takes the guess out of the lens selection process. For those who do not know what variable focus lens is, it's basically adjustable focal length lens that will allow to change the focal length within specified range, fore example: 2.6mm - 8mm or 5mm - 50mm.

To maximize cameras coverage and get the most out of the CCTV system for least amount of money minimize number of it by placing cameras in strategic places, unless complete area coverage is needed. Avoid overlapping camera views, do not install them with source of light directly in front of it and do not place infrared cameras pointing at each other to eliminate risk of overexposure. These are the most common mistakes that need to be avoided. After the initial camera locations are predetermined, lets look at cable placement. Make sure that it is actually possible and practical to run cable to each location, if running the cable to any camera location is for some reason impossible opt-out for alternate location.

Wiring: The most time consuming and important part of any camera installation is wiring. Plan your installation carefully to minimize cable lengths and insure good quality video signal. Never run cables alongside high power electrical lines, at least 12" spacing between video cable and power lines are recommended. Keep the cable lengths below 400ft and use good quality cable, most people take the cable for granted, but it is actually very important aspect of any installation. The CCTV system is only as good as its weakest component. I usually stick with RG59U with power Coleman cable (YES it is US made) sometimes called Siamese type cable. It is combo cable and will transmit video and power, as an alternative it is sometimes possible to use less expensive RG6 standard coax cable with separate run of 18/2AWG for power.

The Siamese cable is less bulky and easer to run, distribution power supply is recommended with this type of cable as power will be supplied from common place right next to monitor and recording equipment. Using Siamese cable makes for more clean and neat installation, as only one line is required for each camera. Running RG6 cable with separate run for power is the likely solution if power outlets are available near each locations. In this case individual plug in power supplies are used to power them with power cable running as separate and independent line to the camera. Both types of cables are available at dvrexperts. When running the cable it is good practice to leave couple of loops of extra cable at both camera and monitoring locations. This extra length of cable is needed if in the future monitoring or location will have to be moved slightly. After the cable is in place, the labor-intensive part of installation is over, now we can get to the fun part of installation.

Camera mounting: Most s come with mounting screws and bracket included, attach the bracket firmly and remember that in some cases different brackets than the ones supplied with the cameras could be needed.

Attach the camera to the bracket and adjust the position approximately at this time, we will come back to it later. Typical security camera is powered by 12VDC or 24VAC and power input type is screw or push terminals or 2.1mm plug. Power connection will differ for each type of power supply and input style. Most cameras are 12VDC, in this case it is important to observe polarity or you may damage the camera. The power cable has two conductors and in most cases it will be red or white and black cable. Use the red or white for positive and black for negative terminals. If it has screw or push terminals power input connect the cable directly observing polarity, if it is 2.1mm plug, a special 2.1MM Female DC Plug with Flying Leads have to be connected to the cable again keep attention to polarity. The 24VAC connection is very similar, with one major difference - polarity is not important.

Next step will involve some special tools and accessories. We will attempt to go over installation process of BNC crimp-on video connector, I will post video demonstration of BNC crimping techniques shortly so please check the web sites mentioned in this article often.

Steps:
1. Remove about 1/2-inch long outer jacket from the end of video cable exposing braid.
2. Slide the crimping barrel onto the cable with the larger diameter facing end of the cable.
3. Pull the braid backwards exposing the inner isolator material and remove 3/8-inch of it so you have now core conductor exposed.
4. The main part of BNC connector has a small hole on one side; push the exposed core conductor of the cable into that hole as far as it will go.
5. Push all the braid folded backwards in step 3 onto the BNC connector and spread the braid evenly around connector.
6. Push the crimping barrel onto the BNC connector all the way.
7. Using crimping tool, squeeze the crimping barrel onto the BNC connector, now the cable braid is compressed in between crimping barrel and BNC connector assuring secure connection.

BNC connector is on, lets hook it up now and repeat the steps for each camera, if you have purchased 16 camera system you may want to get some coffee first.

Monitor and recorder connection:

Cameras are on, its time to make final connections. I will focused on standard CCTV monitor, standalone DVR recorder and distribution power supply, as this is the most popular and likely solution for most CCTV installations.

First we have to install BNC connectors on this side as well - its time for that coffee again. It is good idea to make room for monitor and recorder now and setup some type of desk, shelf or rack to place all the equipment on.

We need the monitor and recorder in place so we can determine proper power supply location. Power supply should be mounted within couple of feet from the DVR video inputs. After power supply is secured separate the power conductors from the Siamese cable, and run it to power supply. Like we did with the cameras if 12VDC power is used, we need to watch the polarity, each terminal on the power supply is marked, so there should not be any doubt. Make sure the power supply is not plugged in to the power outlet yet.

Connect video cables to the DVR video in ports. We need one video cable to connect the DVR with the monitor, if you do not have one you may cut piece of Siamese cable separate the power conductors from it and install BNC connectors on both ends, you now have the cable. Connect the DVR monitor out port to monitor video in. We are almost ready to power up everything; there is only one more thing to take care before we do that.

We need to protect the equipment from power spikes by plugging it into power conditioner or better yet, buttery backup unit. If the installation location is experiencing frequent power outages, the backup unit is strongly recommended. To extend the backup time only plug the DVR and camera power supply to the backup unit and the monitor to regular power strip, this way if we do loose power for some time the DVR and cameras are still functioning as normal while monitor is off. Turning off monitor will not affect DVR and cameras in any way; it is actually good habit to turn the monitor of if not used to extend its life.

Power on and final adjustment: Yes... we are now ready to power it up for the first time, if this is your first installation it may be nerve-racking experience. Start with turning the cameras power supply on, turn the monitor on as well followed by DVR system. The stand-alone DVR, after self-test will show cameras or setup menu on first power up depending on your model.

To setup the DVR refer to the manual for proper settings. Go over each camera view to determine if the view is actually what you want, hardly ever it will be without additional readjustments. To properly and easily adjust the positions, the test monitor will be very handy if not essential tool. Go to each camera location and connect the test monitor to adjust the position to your preferences, if satisfied secure camera bracket adjustment screws - we will not go back to this camera anymore.

Conclusion: Congratulations! You have just completed your most likely, very first installation of CCTV system. Visit our store fore more information on surveillance cameras, DVR recorders, tools and accessories.

CCTV Camera - Do-It-Yourself Installation Guide

Robert Moskal is Technical Department Manager at V2Comp,Inc, a major installer of security equipment located in Chicago area. More information about CCTV systems and security cameras installations [http://www.v2comp.com].






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Thursday, September 20, 2012

Inexpensive Automated Eco-Friendly Water Soaker Garden Irrigation System - Do-It-Yourself

Inexpensive Automated Eco-Friendly Water Soaker Garden Irrigation System - Do-It-Yourself


You looked at installing a underground sprinkler system on your property. And then stopped short when you realized the thousands of dollars it would cost! How could plastic pipe and sprinkler heads cost so much? Here is a lasting inexpensive water irrigation system that is near maintenance free and will have your neighbors wondering why they never see you watering your garden and plants. You can claim yours to be an environmentally friendly garden soaker system (or water drip system), using the minimum amount of water to sustain your plants and shrubs.

Inexpensive Automated Eco-Friendly Water Soaker Garden Irrigation System - Do-It-Yourself

Inexpensive Automated Eco-Friendly Water Soaker Garden Irrigation System - Do-It-Yourself

Inexpensive Automated Eco-Friendly Water Soaker Garden Irrigation System - Do-It-Yourself


Inexpensive Automated Eco-Friendly Water Soaker Garden Irrigation System - Do-It-Yourself



Inexpensive Automated Eco-Friendly Water Soaker Garden Irrigation System - Do-It-Yourself

Get the water as close to the plant roots as possible. Using less water is important to our global environment.

Communities now encourage water soaker systems instead of sprinkler systems. Water applied near the ground will mostly be absorbed into the earth where it is needed by the plant and grass roots. Water sprayed above the plants and grass lands on the leaves and flowers before dripping to the ground. This longer exposure to the air will cause much of the sprayed or sprinkled water to evaporate into the hot summer air.

More than ever now communities control the watering of lawns and gardens during the summer months. Sometimes you are restricted to garden watering only - not lawns. An automatic water timer system combined with a soaker hose system makes plenty of sense in reducing the amount of water dispensed to water your garden plants and shrubs.

So how can I make an effective soaker system for my garden for under 0?

With some off-the-shelf components, you can have a simple but elegant soaker system that with be automatic and near maintenance free. With a simple water timer system, Y-connectors, faucet multipliers, some 1 1/2" ABS pipe, quality 1/2" garden hose and your choice of soaker hoses or irrigation hoses for potted or hanging plants, border gardens, row gardens or (dare I say) even lawn sprinklers. You now have the elements for a simple soaker irrigation system for your garden. This do-it-yourself automatic water irrigation system will ensure you water plants at the best time every day; specifically, early morning and late afternoon. As an added home security feature, when you are away from home your garden will sustain its beauty and make it look like someone is at home.

Here is the material list required for your automatic garden soaker system. (Note: there is a complete Picasa image gallery of all the required components of this inexpensive soaker system at http://picasaweb.google.com/carl.chesal/GardenIrrigationSystem ):

1) Select your water timer - I selected Orbit from Home Depot. Make sure it has a Battery timer so Power outages won't alter your scheduled watering times. It should allow for at least 3 watering zones.

2) Select your main faucet multiplier (or Valve splitter) that will attach to your outside water faucet and can accommodate the 3-4 water zones plus a spare to allow for regular garden hose watering. You can secure these special faucet multipliers from garden centers or at Lee Valley Tools

3) Enough 1 1/2" ABS pipe (and glue) and 22.5 degree elbows to run underground (6" - 10" depth). Use the 22.5 degree elbows only to allow for easy insertion of the garden hose into the ABS pipe. You can cut further costs by burying the garden hoses directly underground. The ABS piping does provide added protection from accidental puncture from aerators, pitch forks and other garden tools. This ABS pipe can also serve double duty to run low voltage wire or speaker wire to the remote areas of your garden.

4) Enough quality garden hoses to run through the ABS pipe and connect to the soaker hoses in all your garden beds.

5) Soaker hoses for all your garden beds.

6) Enough Faucet multipliers (Valve splitters) to extend each watering zone with soaker hose as required.

Creating your automatic garden soaker system involves more of a landscaping effort than anything else. Here are 3 steps to completing your eco-friendly automatic garden soaker system (Note: refer to the Picasa image gallery for details of component assembly):

1) Bury the ABS pipe feeding the garden hose through it as you connect and glue the pipe sections. Bury the pipe 6"-10" under your lawn or sidewalk. Have both ends extend out of the ground using the 22.5 degrees elbows so that the stiff hose can still be easily pulled through the pipe.

2) Connect the soaker hoses to the ends of the garden hoses and weave the soaker hoses through your garden under plants and around shrubs. Follow the installation instructions of the soaker hose manufacturer.

3) Install the water timer and water zone valves on the faucet multiplier. Connect the hoses for each zone. Follow the installation instructions of the water timer manufacturer. Do not set the water time for each zone more than 20 minutes each. Set two water times - early morning (around 6 am) and late afternoon (around 7 pm).

Maintenance of your Irrigation System and Preparation for Freezing Winter Temperatures:

1) Disconnect the [zone] hoses at the main faucet where the Water Timer is located.

2) Using a Shop Wet Vac, suck the excess water from each zone hose. Use electrical tape to secure the vacuum pipe against the end of the hose. Turn on the wet vac and let it run for 10-15 minutes. Empty the water extracted before repeating this for each hose at the main faucet. You will extract enough water from the hoses so as not to incur any winter damage to your hoses from freezing water.

3) Tape a plastic bag over the ends of each of the [zone] hoses. This will prevent little critters from getting in the hoses and clogging them when you reconnect the system in the spring.

4) ReMove the water timer and faucet multiplier. Store them in a warm place where they will not freeze.

5) Note: you DO NOT need to disconnect and reMove the soaker hoses. They should last 4-6 years before you need to replace them. Check the soaker hoses each spring for holes. You can patch these holes with high-friction Silicone tape. You may also leave outdoors all-year-round any valve splitters that were used to increase the soaker hoses in a particular water zone.

You now have an inexpensive water soaker system that won't break the bank. You have saved thousands of dollars and can boast of being a friend to our environment. You clearly are doing your part for water conservation and the ecology. Nice going!

Inexpensive Automated Eco-Friendly Water Soaker Garden Irrigation System - Do-It-Yourself

Thanks To : Rechargeable Batteries | Green Battery Chargers | TCL L32HDF11TA LCD HDTV