Posts Tagged ‘ Home Camera System’



Motion Activated Wireless Security Camera

Written By:
Monday, October 18th, 2010

Here are some common questions we’ve had about motion activated wireless security cameras:
• How do these cameras detect motion?
• How does the wireless function work and why would I need it?
• What provides the power for this camera?
• Can I install this camera myself?
• Does this camera produce color or black and white video?
• How do I record the video from a motion activated wireless security camera?

In the following article we will answer these questions and provide you with some general background knowledge concerning a motion activated wireless security camera.

A motion activated wireless security camera is a digital video camera that contains a built in motion detector. When the motion detector senses motion, it turns the video camera on so that it may begin recording digital video images. This means that the camera is only recording video images when the motion detector senses movement.

The motion sensor itself is an infrared sensor. In fact, the name of the sensor is a Passive InfraRed or PIR detector. It works by constantly monitoring the infrared radiation (IR) in the cameras general field of view. When a sudden change in this radiation occurs, the sensor can detect it, and assumes it is caused by an object in motion. The PIR motion sensor is connected to a relay switch so that when motion is connected, the relay switch turns on the camera to being recording. The recording session ends when either the motion has stopped or after a pre-programmed period of time after the motion has stopped.

Digital video images are basically the same thing as digital photographs however they are taken very rapidly in succession. High quality fluid motion is created by taking up to 30 photographs (in video talk these are called “Frames”) per second or 30 FPS. Digital video then is basically many (on the average depending upon the total length of recording time) several thousand to hundred thousand photographs. Imagine the size of a data file for one high quality digital photograph. Now multiply that times 300,000 for example, and that’s how large the digital video file could be.

A digital video camera running constantly at 30 FPS, that creates 1 Megabyte(MB) of data for every frame, creates 30 MB per second or 1.8 Gigabytes (GB) per minute or 108 GB per hour. Using one camera constantly with a 500 GB Digital video Recorder or DVR, would use up all the disk storage space in less than 5 hours recording time.

A motion activated wireless security camera however, only records video when motion is detected. When used properly, this greatly reduces the size of the digital files and conserves DVR storage space.

A second benefit of using a motion activated wireless security camera is power conservation. A motion activated wireless security camera may not be totally wireless. Although these cameras use radio signals to send their video data to a receiver of DVR, they still must be supplied with low voltage Direct Current (DC) power. This is usually accomplished by using a power distribution center and running a small wire from it to each camera or by using a plug-in outlet transformer and running a wire from it to the camera(s).

However, there is a third option for providing electrical power to the camera as well. Some cameras can utilize rechargeable batteries. These cameras use very little power for the constant “on” state of the PIR sensor. The greatest power drain on the system is when the camera is actively recording. Therefore a motion activated wireless security camera can also greatly conserve on power consumption and therefore extend rechargeable battery usage periods, another great benefit of this type of camera.

The camera is easy to install and operate so any “do-it-your-selfer” can install and operate the camera. Once the camera is mounted, and the system is set up, the camera will automatically begin functioning, sending digital video data to the DVR so that the video data can be stored on the hard disk drive.

A motion activated wireless security camera has many other features and options that make it a powerfully versatile security tool. In addition, the camera can record in black and white or high quality color.

This should provide you with some basic knowledge about a motion activated wireless security camera. If you have any addition questions or would like to purchase a camera or system, please contact one of Security Camera Kings security experts today.

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Home Security System Camera Sound

Written By:
Friday, August 20th, 2010

If you need a residential security monitoring system that records audio, you need to consider a home security system camera sound. These systems are standard digital video recording systems that produce high quality color digital video but in addition, they also record sound.

There are several uses for a home security system camera sound. One of the most widely used applications is as gate cameras at the entrance to properties. A digital video camera with sound is placed at the entry gate location and is normally used with an electronically controlled entry gate. Users can not only see the visitor using video, but can converse with them using the audio function as well.

Another practical application, similar to the gate camera, for a home security system camera with sound is a front door (or any door for that matter) entrance system. The camera is mounted in a location that can capture the image of anyone entering or approaching an entrance. Once again, audio can be recorded and with a simple intercom like system be used to communicate with the visitor.

A third application for a home security system camera sound is when it is used as a baby monitor. Night vision infrared security digital video cameras with audio are normally used for these systems. An infrared digital video camera is sensitive to infrared radiation. These cameras use infrared Light Emitting Diodes ore LEDs to illuminate the baby’s area. Infrared light is invisible to the human eye so it won’t disturb the baby during periods of sleep at night. In addition, audio recording provides constant sound monitoring as well, making this a comprehensive monitoring system.

Another possible application may include using a camera with sound to monitor a non-ambulatory medical patient. Some individuals that are confined to a bed may require 24/7 video monitoring. In addition, if a home security system camera sound is used then the patient can alert the caregiver if they are needed by using their voice or some other sound creating object. Wireless remote monitors make these applications even more versatile by allowing the user freedom to move about the house.

There are several different types of home security systems with cameras that capture sound. In fact, most camera types are available. Some of the sound recording camera types available may include:

• Indoor/outdoor — unless they are specified as being both types, cameras are normally one or the other. Outdoor cameras have enclosures that protect them from the elements.

• Day/night vision — these cameras are very sensitive to light and record video images in very little available visible light.

• Night vision infrared — these cameras (such as the baby monitor type mentioned above) can record video images in total darkness using infrared illumination.

• Wireless — digital video security cameras require a transmission cable be run from each camera to a Digital Video Recorder or DVR. Wireless cameras eliminate the need for this cable by sending the signal via radio waves.

• Pan-Tilt-Zoom (PTZ) — these cameras and move horizontally and vertically to increase the field of view for the camera. In addition, they can “zoom” in using telephoto lens technology to enlarge objects.

• Internet Protocol or IP ready — these cameras contain their own server technology and c an be networked using the internet. Their video and sound can be monitored and recorded using a personal computer connected to the internet and a standard web browser like Internet Explorer.

• Motion Detection On — these cameras contain a motion detector that switches the camera on to record video and audio saving DVR or hard drive recording space. In addition, if your camera is battery operated this will greatly extend the life of the battery.

These are just some of the examples of the various cameras that can also be used to record sound. If capturing sound is important as well as video, you should consider purchasing a home security system camera sound. These systems require very little if any extra installation preparation, are easy to install and use, and are versatile enough to be used for many different kinds of applications.

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Security Cameras for In Home Use

Written By:
Wednesday, August 4th, 2010

There are several types of security cameras for in home use. In fact, just about any security camera can be used for residential purposes although there are cameras that are more suited for in home use than others. Security camera technology has advanced so much recently that the versatility of security cameras for in home use is almost limitless.

Every home is different; the number of rooms in the home, the perimeter area that surrounds the home and the size of the home’s yard, the entrances and exits, number of windows, especially those on the ground floor – all vary from house to house. As every home’s design is different, so are the uses and needs for the security cameras for that home.

The most effective method to determine what security cameras for in home use are best for you is to evaluate your home design and your security desires and needs. After determining what you need to provide and the level of security and monitoring you desire, you can more easily begin the process of shopping for specific cameras that will satisfy those requirements.

Still, as stated earlier, there are security cameras for in home use that are more suited for this application than others. For an obvious example, an explosion proof camera or housing would be a ridiculous and unnecessary expense for in home use. However Security Camera King offers several different indoor security cameras that are perfect for in home use.

One way to narrow down your camera choice is to determine if you will be able to run the video transmission cable from each camera to the processor/DVR or Digital Video Recorder or if you would prefer a wireless camera instead. Cabling is the least expensive and the most common option for connecting the digital video camera to the DVR.

However, if installing the RG59 coaxial cable would be troubling for you, or if the cable would seem unsightly, or for any other reason the cable would not be right for you, wireless cameras would be the appropriate selection. Wireless cameras still require electrical power supply, normally in the form of a small wire run to the camera from a plug-in transformer or power distribution box. There are some wireless cameras that use rechargeable batteries as well.

Wireless cameras make use of radio technology to broadcast their video data to a corresponding receiver which then transfers the signal to the DVR. So a receiver is also needed if you choose the wireless camera option. Most receivers can handle up to four cameras at one time so if your system requires more than four cameras additional receivers (or a receiver that can handle more than four cameras) will be needed.

Regardless of whether you use cable or wireless technology, there are several different security cameras for in home use based on appearance, mounting design, and function. There are basically three types of cameras based on appearance. They are the box, bullet, and dome types, with each name representing a description of the appearance of the camera.

Each type has its own benefits and deficits. The box camera is probably the most common style of video camera but can also be somewhat obtrusive mounted on a room wall. The bullet type is also popular, but this type of camera usually lends itself to weatherproofing and infrared technology geared toward the outdoors. So if the box and bullet types are not appropriate for your application, then the dome type camera would probably be the best choice.

Dome cameras are fairly low-profile cameras with many available as a flush mount. Flush mounted dome cameras are installed in the wall or ceiling with only the “bubble” cover extending away from the surface. Security Camera King offers several different types of indoor dome cameras based on use and resolution display. That includes total darkness capable night vision infrared dome cameras as well.

Another category of security cameras for in home use include the hidden or disguised camera types. The cameras are embedded inside clocks, thermostats, and other everyday items to disguise their appearance.

To determine what camera is best for you, talk to one of our security experts today.

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Home Camera System with DVR

Written By:
Friday, June 25th, 2010

A home camera system DVR or Digital Video Recorder is a standalone digital video security camera system suitable fur residential use. Recent advances in computer and electronic technology have provided the home camera system DVR user with an abundance of optional features, making the system versatile enough to be used just about anywhere.

A home cameras system DVR is basically a component system. There are different parts that make up the entire system and each individual part can differ to provide a specific function. These “parts” are the components and when put together create the system.

A typical home camera system DVR consists of the following components:
• Camera or cameras;
• Power supply;
• Processor/Digital Video Recorder with CODEC utility; and,
• Monitor

Cameras used in a home camera system DVR may be indoor or outdoor types. Outdoor cameras have a protective cover that keeps dust, water, weather and other environmental elements from penetrating it and harming the camera. These cameras are often rated based on a standard called an Ingress Protection or IP rating. When shopping for an outdoor camera, make sure it has a rating of either IP66 or IP67. Both ratings indicate complete protection from dust and water.

When creating your own custom home camera system DVR, you generally will require both outdoor and indoor cameras. Outdoor cameras may be used for monitoring the perimeter of your residence or for specific outdoor areas. Indoor cameras are generally used for monitoring rooms, doors, and areas inside the home.

Regardless if the camera is an indoor or outdoor model, each camera will need to be connected to a power supply, and a coaxial cable will need to be run from each camera to the processor/DVR. However, the coaxial cable can be eliminated by using wireless cameras instead.

A wireless home camera system DVR differs from a standard home camera system DVR in that each camera has its own transmitter and antenna. The camera transmits its video signal using the 2.4 or 5.8 GHz radio band to a corresponding receiver. The receiver is usually in the same location as the DVR. The receiver passes the radio signal in electronic form to the processor/DVR. Wireless cameras are quick and easy to install.

The digital video cameras used in a home camera system DVR are state-of-the-art electronic devices. They create a digital video image by capturing light from the lens on a special electronic sensor chip. There are two types of sensor chips; Charged Coupled Devices or CCDs and Complimentary Metal Oxide Semiconductors or CMOSs. These chips range in size from less than ¼ inch to about 1 inch. Generally, the larger the chip, the greater the resolution of the video image that is produced.

Cameras may contain special highly sensitive chips to produce digital video under different lighting conditions. Day/night vision cameras produce high quality color video with very little available visible light. Night vision infrared cameras produce high quality color video under normal lighting conditions and high quality monochrome or black and white video under infrared conditions.

Night vision infrared cameras contain Light Emitting Diodes or LEDs that project infrared light onto the target area of the camera. This illuminates the target area like a spot light or flood light; however the human eye cannot see this light. On the other hand, the camera can see the infrared illumination and indeed uses it to produce a clear, high quality video,

Day/night vision cameras require at least some sort of visible light; night vision infrared cameras can produce an image in total darkness. However, infrared cameras are limited to how far they can “see” in total darkness based on the LEDs used to illuminate the target area. If your home camera system DVR requires infrared cameras, be sure to check the range of the camera before purchasing to make sure you have one that will fulfill your needs.

Other available options for cameras include audio recording, and Pan-Tilt-Zoom (PTZ) functions. A PTZ camera with motion detection can be programmed to track moving objects.

The DVR of a home camera system DVR is like the hard disk drive on a personal computer. Its main function is to store the digital video files. Raw digital video files are extremely large which makes them difficult to store and handle. The DVR uses a CODEC utility to shrink file size but retain video clarity. DVRs can be purchased in a variety of storage sizes ranging up to several Tera bytes.

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Home Camera System DVR

Written By:
Friday, May 7th, 2010

A home camera system DVR or home camera digital video recorder could be exactly what you need to acquire the peace and comfort of twenty-four hour seven days a week security and surveillance. Technological improvements have reduced the price of Closed Circuit Television or CCTV monitoring so that not only can businesses enjoy their benefits but the average homeowner can as well. Not only is a home camera system DVR affordable, but it can also be accessed whether you are at home or on the road.

What exactly is a home camera system DVR? It is a group of individual component devices that work in tandem to provide constant monitoring of your home both inside and outside if desired, and at the same time record this monitoring for future use. A typical home camera system DVR consists of 1 to several cameras, a processor or CODEC/capture board, and a digital video recorder. There are many variations and additions available for this basic description. Let’s take a look at each device within the system and see how it can work for your home.

The first device to consider for a home camera system DVR is a security camera. There are various types of cameras with many additional functions than simply recording video. However, the basic camera is a digital, color camera that can capture still digital pictures or motion video. Security cameras have different resolutions, focal lengths, fields of view and other characteristics. To determine what functions need to be included on your cameras, talk with one of our digital security experts.

Most of today’s digital security/surveillance cameras are so sensitive that they can capture images not only in broad daylight, but in situations where there is very little available light. These cameras are called day/night cameras and they contain a very sensitive electronic chip that allows them to function in conditions with low light. On the other hand, if you need a security/surveillance camera that can “see” in total darkness, those are available too.

Infrared or IR cameras can produce black and white images in total darkness. They do this by projecting an infrared light from around the camera lens at the target area. This light is invisible to the human eye but is the equivalent of a spotlight to the IR sensor in the camera. These cameras are excellent for use in monitoring nursery rooms and other indoor rooms at night, dark driveways, garages, and other areas that have no existing light.

There are also security/surveillance cameras that have a pan, tilt, and/or zoom function. These cameras have the ability to move sideways, up and down, and telescopically zoom in on activity, all automatically if needed. These are excellent for monitoring large areas such as large yards, farm land, and other large places.

Digital video is basically many digital photographs taken within just one second. This creates the illusion of motion and this is how motion pictures are created. If you consider the size of a file for just one digital color photograph, it can be fairly large, so taking several digital photographs a second can add up to a really large file size in no time. This is where the processor, capture board, or CODECs (CODEC is an acronym for COmpression DECompression) are needed. They process the digital data sent from the camera, then compress the digital file’s size so the digital file is much smaller without sacrificing the quality of the video. CODEC is an acronym for COmpression DECompression.

Finally, the processor sends the final digital file to the DVR. A home camera system DVR or digital video recorder is actually the same thing as the hard drive on a personal computer. It stores the digital file continuously until the hard drive is full and then re-records new video from the beginning. If necessary, data can usually be copied to another device if needed for distribution.

A home camera system DVR also has the versatility of being viewed from almost anywhere in the world. Today’s systems can be networked over the internet making accessibility possible anywhere that internet accessibility is possible. This is particularly useful if you travel a lot or are away from home for an extended period of time. This can also provide you with 24/7 monitoring by a security/surveillance and alarm monitoring service.

As you can see, there is a home camera system DVR for just about any application. Talk with one of our digital security experts today to get your custom designed system.

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