Posts Tagged ‘ Security Systems’



Church Security Systems

Written By:
Wednesday, June 30th, 2010

Unfortunately, in this day and age even church security systems are becoming a necessity. Many churches only have people inside or on the premises at certain times and/or on certain days. This predictable schedule of appearance can make churches and related buildings excellent targets for vandalism and theft. However, a digital video church security system can reduce the threat of theft and vandalism tremendously and provide documentation of the event should it occur.

Standalone digital video systems are a great investment as a church security system. Not only can they record acts of vandalism and theft, but simply having digital video church security systems deters most potential wrong doers. In addition, these systems are incredibly versatile which means they can be used in just about any situation or application and they are affordably priced so they can accommodate just about any church budget.

Church security systems require very little maintenance or human intervention when operating. That means on the days that there are no church related activities, the system continues to provide monitoring and security services without the need of an individual to be present to operate.

Church security systems can be used anywhere on church property. Cameras can be placed anywhere inside the church from the vestibule to the altar or apse. Their relatively small size does not usually disturb the aesthetics of the interior design of the church. Cameras can be placed in reception rooms, Sunday school classrooms, storage facilities, and on the property’s perimeter to provide comprehensive coverage.

Basic digital video camera church security systems have from one to several digital video cameras, a processor/Digital Video Recorder or DVR and a monitor. The cameras capture the video image and send it via a coaxial cable to the processor/DVR unit. This unit uses the information to create a digital video file which can be stored on the DVR for later viewing or archiving, or can be viewed live.

Digital video files can be incredibly large in size. A digital video is actually several digital photographs taken in rapid succession, usually about 30 per second. A digital photograph file can be rather large in size, so one can imagine the potential size of a digital video file. The processor uses a software or hardware utility to shrink the size of the digital video file without destroying the quality of the file. This makes the file easier to handle and provides for longer storage times on the DVR.

The digital video cameras used for church security systems have a variety of optional features that allows the cameras to be used just about anywhere. For example cameras can be indoor or outdoor models. Outdoor models are just like indoor models except they contain a protective case or covering that protects them from being penetrated by various types of matter. These cameras are often rated according to an International Electrical code standard called an Ingress Protection rating. When purchasing outdoor cameras for a church security system look for cameras rated IP66 or IP67 as these provide protection not only from dust but from water as well.

Church security system cameras can be wireless too. A wireless camera only requires a small wire for its power supply. Normally, a coaxial cable is run from each camera to the processor/DVR unit; however wireless cameras eliminate this cabling.

A wireless camera has a built in transmitter and antenna that sends its video information in the form of radio waves to a receiver. The receiver is normally located in the same location as the processor/DVR and/or monitor. The receiver converts the radio signal back into an electronic signal and sends it to the processor/DVR for viewing or recording. Wireless cameras are incredibly quick and easy to install and provide for a more aesthetically pleasing appearance since there is no cable running from the camera to the DVR.

Other optional features may include:
• Ability to record audio
• Day/night vision cameras that require very little light to produce an image
• Night vision infrared cameras that can produce a high quality video image in total darkness
• Pan-Tilt-Zoom functions
• Network cameras that use the internet as the network and can implement a personal computer to carry out the functions of the processor/DVR and monitor

As you can see, church security systems are incredibly flexible in application and can provide a high level of “deterrent factor” for theft and vandalism. In addition, these systems are reasonably priced to fit just about any church budget.

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Home Door Security Systems

Written By:
Tuesday, June 29th, 2010

Are you unable to see through the peephole on your front door? Would you like to be able to see who is at your door before they see you? Home door security systems could be the answer for you. Home door security systems can range from a very simple one-camera system to a more complex multi-camera system with entrance controls.

A simple home door security system consists of a digital video camera and a monitor. The camera is placed in an appropriate location so that it best captures the identity of the person or person knocking on your door. The monitor may be located anywhere within the house that is the most convenient for the user. A transmission cable is run between the camera and the monitor. The unit is generally in a continuous “on” state so that potential guests can be seen approaching the door.

A more sophisticated setup may include a Pan-Tilt-Zoom (PTZ) camera and monitor. If used correctly, a PTZ home door security system can take the place of two or more cameras. A PTZ camera can move about a horizontal or vertical axis increasing the field of view for the camera. In addition, the zoom function permits the user to use the telephoto capabilities of the lenses to enlarge the field of view. Using a PTZ camera, you can easily enlarge the field of view to get a close up of the visitor’s face.

Another more sophisticated home door security system setup may include more than one camera. A camera can be placed at every exterior entrance/exit of the residence. This provides the homeowner with the ability to monitor all the doors of the residence from one central location.

You can take advantage of the audio feature for your home door security system too. Most digital video cameras have the ability to record audio as well as video. You can easily monitor sound by using a setup that has a monitor with speakers. Some systems also have two-way audio, which allows the user to interact with the visitor as well.

Finally, the ultimate home door security system could include not only a camera monitoring system, but a remote entrance control as well. You can install remote door locks that can be unlocked (or locked) at the push of a button. Used in combination with a camera with two-way audio and a monitor, this is the ultimate in safety and security for a home door security system.

As visitors approach the door you can monitor both video and audio. When the visitor knocks on the door, you can greet the visitor or inquire as to their visit, before allowing them entrance to the premises. Once you have decided to grant the visitor(s) access, you can remotely unlock the door and invite them in. These systems work great not only with security as the primary consideration, but they are especially useful for physically challenged individuals that would find it difficult to greet every visitor at the door.

Home door security systems aren’t limited to just doors either. The same sort of set can be used on entrance gates to properties, providing even greater preemptive security monitoring, especially when combined with a remote automatic gate control.

Also, home door security systems aren’t just limited to use in single family homes; they can be utilized for apartments or condominiums as well. This is especially useful if you live in a multi-apartment building and there is no fulltime door man or building monitoring system. In this case a camera could be monitored on the exterior of your wall next to your door. Or, if you want to use something less noticeable, you can use a very small “pinhole” type wireless camera mounted on your door itself.

Thanks to the versatility of digital video security cameras, there are literally dozens of ways to set up a home door security system. In addition, modern innovations in electronics have driven component prices down so that these systems are reasonably priced.

If you are looking for a simple and affordable method for monitoring visitors at your residence, a home door security system is a cheap and sensible investment.

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Security Systems With 8 Cameras

Written By:
Monday, June 21st, 2010

Security systems with 8 cameras can fulfill many of your security and surveillance needs. Many business and residential applications alike can provide complete outdoor/indoor surveillance by using security systems with 8 cameras. In addition, modern technology has yielded systems that are incredibly versatile such that they can be used for nearly every type of application.

A basic security system with 8 cameras consists of the 8 cameras, a processor digital video recorder or DVR unit with a CODEC application, and a monitor. The cameras are placed in their appropriate locations to provide the maximum coverage necessary to fulfill the security requirements for the system. A coaxial cable is run from each camera to the processor/DVR unit. Each camera has a small wire run from either a wall adapter or power distribution center to provide it with the electricity necessary to function.

The processor/DVR and monitor may be placed in a different location. For example, a retail store may have two cameras that cover the external perimeter of the store, five cameras inside the store, and one camera covering the cashier’s desk. The processing unit/DVR and monitor however, are located in the store’s office, away from public view. This provides a remote, usually more secure area for monitoring and recording the video from the cameras.

Security systems with 8 cameras are often referred to as “8 channel” systems. This basically means that the processor/DVR has the ability to receive 8 different inputs, usually simultaneously. In fact the processor/DVR is usually referred to as an 8 channel DVR and the power supply center is usually referred to as an 8 channel power distribution center.

If the coaxial transmission cable that is run from each camera to the processor/DVR is unsightly or difficult to install, there are wireless security systems with 8 cameras. These systems differ in that the cameras have their own on-board antenna which they use to transmit their video signal. The video is sent to a receiver unit using either the 2.4 or 5.8 GHz radio band technology. The receiver simply transfers the radio signal into an electrical signal and passes it on to the processor/DVR.

Since security cameras utilize the 2.4 or 5.8 GHZ band technology, their rated maximum ranges are based on Line Of Sight or LOS. An LOS range is the ideal distance between the camera and the receiver where the area between the two is not impeded by objects such that one can’t be seen from the other’s position. This does not mean that the camera and receiver must have a perfectly unimpeded LOS, however reception ranges will decrease based on the material that the transmitted radio waves must pass through.

There are several other features and options for a security system with 8 cameras. Each camera does not have to be the exact same model. Therefore, different cameras with different functions can be “mixed and matched” within the system to accommodate your security requirements. This and the fact that the system itself is basically a component system that allows a variety of different equipment features, makes the system incredibly versatile in application.

Here is a partial list of some of the many options/features available for the cameras:

  • • Cameras can be indoor or outdoor types
  • • Day/night vision cameras produce high quality color video in conditions with very little visible light
  • • Night vision infrared cameras produce high quality monochrome video in conditions of total darkness (under normal daylight conditions these cameras produce high quality color video)
  • • Audio recording
  • • Pan-Tilt-Zoom features that allow the camera to move to increase its field of view or telescopically enlarge the target
  • • Hidden or disguised cameras

The processor/DVR unit of a security system with 8 cameras can also have different features. The processor converts the cameras’ video signal into a digital video file. These files can be incredibly large and bulky which can make them difficult for the processor or the DVR to store. The processor/DVR uses a COmpression/DECompression or CODEC utility to reduce the size of the file while maintaining high video quality. There are several different CODECs available.

The DVR is much like the hard disk drive on a personal computer. Its size can range from a few hundred gigabytes to several terabytes. In addition DVD or CD drives may be included for archiving and copying video files.

A security system with 8 cameras can provide you with the security coverage you need and is versatile enough to be used in almost every situation.

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CCTV Video Security Surveillance Equipment

Written By:
Friday, May 28th, 2010

CCTV video security surveillance equipment or closed circuit television video security surveillance equipment can provide all of your security and monitoring needs. Contemporary CCTV video security surveillance equipment offers several features and great versatility along with affordable prices that make this equipment and excellent choice for business and residential applications.

CCTV video security surveillance equipment consists of a few basic components that make up the security systems. Each of these components offers convenient and often highly technologically advanced features that create the versatility of the system such that the equipment can be used for nearly any situation or application. In addition, there are several additional components that can be added to a basic system with ease.

Basic CCTV video security surveillance equipment consists of the following five items:

  • Digital video camera(s)
  • A processor or capture board
  • A monitor
  • A digital video recorder or DVR

Probably the most important component is the digital video camera. Digital cameras for CCTV video security surveillance come in a variety of types, sizes, and functions. Cameras can be classed as either indoor or outdoor cameras. The major difference between the two is that outdoor cameras are built within a casing or enclosure that protects the sensitive electronic components of the camera from the weather and other environmental elements.

These cameras often contain an International Electrical standard code rating that provides the user with a description of the ability of the camera to withstand penetration by liquids and particles. This rating known as an Ingress Protection code or IP code is normally an IP66 or an IP67 for an outdoor CCTV video security camera. IP66 means that the camera is impervious to dust and that powerful water jets from any direction shall have no harmful effects. A rating of IP67 means the camera is impervious to dust and can be submerged in water up to 1 meter in depth.

CCTV video security surveillance equipment cameras can be purchased with other specialized features. Most of these features are based upon recent technological innovations and may increase the cost of the camera depending on the feature and its range of function but are well worth the expense.

For example, most CCTV video cameras create video using a small sensor chip called a Charged Coupled Device or CCD. The CCD converts the light transmitted through the camera lens into an electrical charge that can be detected and used to create high quality digital video. Some CCDs are so sensitive that they can produce high quality video with very little visible light. These cameras, are called day/night vision cameras. Other cameras, called Infrared (IR) night vision cameras can produce a high quality color image when there is visible light present and can produce a high quality monochromatic or black and white image under total darkness conditions when absolutely no visible light is present.

Other features that can be included on CCTV video cameras include a pan, tilt, and/or zoom function, the ability to record audio, and the ability to transmit the video signal from the camera to a receiver using radio waves.

Pan and tilt functions permit the camera to be moved in different directions allowing the camera to cover a wider area of view than one that is stationary. Using pan and tilt functions, one camera may be able to cover the area that may take two or three stationary areas to cover. The zoom function also allows the camera to take advantage of enlarging the field of view, much like a telephoto lens. Cameras can be purchased with the individual pan, tilt, and zoom functions or they can be offered collectively, often referred to as PTZ cameras.

PTZ cameras can be controlled manually, by remote control, and by programming. Programming functions for PTZ cameras can provide automatic tracking functions when utilized with automatic motion detection. For example, the camera can follow a car traveling through a parking lot or an individual in a specific area.
Wireless CCTV video security surveillance equipment normally uses the 2.8 MHz or 5.8 MHz radio band to transmit the video image from the camera to the receiver, which then sends it along to the processor. Cameras come with built-in antennas and circuitry that send the images.

CCTV video security surveillance equipment has seen tremendous technological improvements in just the past few years making the equipment versatile and affordable for just about any application.

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Security System Camera DVR

Written By:
Monday, May 24th, 2010

A security system camera dvr or digital video recorder is one of the most common security and surveillance packages used by homeowners, police departments, security agencies, governments and many businesses today. Modern technological advances have yielded a variety of interesting and useful features while keeping prices affordable for not only corporate applications, but for residential applications as well.

A typical security system camera dvr includes one to several cameras, a processor, a monitor, and a dvr. There are many features and upgrades that are available for the security system cameras. The following paragraphs cover some of the most popular and useful features.

Cameras can be categorized based on where they will be used. There are basically two types of cameras based on there placement location: Indoor and outdoor.

Security system camera dvr that monitor and record outdoor activity usually utilized outdoor cameras. These cameras are designed for use in outside environments where they are subjected to weather and other environmental elements. Outdoor security system cameras are normally contained within a case that protects the camera from exposure to dust, water, and other objects. These cameras are often rated based on an International Electrical Code standard known as an Ingress Protection or IP rating.

An IP rating stands for Ingress Protection rating. Cameras for a typical outdoor security system camera dvr usually have a rating of IP66 or IP67. IP66 means the camera is protected from dust and powerful water jets. IP67 means the camera is protected from dust and can be immersed in water up to 1 meter in depth.

Indoor cameras for a security system camera dvr to not have the enclosure that offers protection from the elements as this is not necessary.

Both indoor and outdoor cameras for security system camera dvr may be “wired” or “wireless.” Digital security cameras capture the target area image and transfer it into electronic signals that can be sent to a process or where they are used to recreate a video image. “Wired” cameras send this electronic information via a coaxial cable that is run from each camera to the processor. “Wireless” cameras do not require this coaxial cabling. Instead, a wireless security system camera dvr transmits its electronic information via on-board antennae located on the camera. The only wiring required for wireless cameras is a small line needed to supply power to the unit and on some models; this is replaced with rechargeable batteries.

Digital cameras used for a security system camera dvr can produce a video image in high quality color or black and white; most cameras produce a high quality color image of 420 lines of resolution.

Indoor or outdoor cameras, including both wired and wireless models can also be purchased as day/night vision cameras or as infrared (IR) night vision cameras. Day/night vision cameras produce a high quality color video image using available light. IR night vision cameras for a security system camera dvr produce a high quality monochromatic or black and white video image using near infrared spectrum illumination.

Day/night vision cameras have a very sensitive electronic image sensor circuit that can produce video images in extremely low light conditions such as outdoors at night with no moonlight. However, these cameras must have some visible light available to produce the image, even if the available light intensity is very low.

Night vision IR cameras have a special IR sensitive electronic image sensor circuit that can produce normal color video during daylight conditions, but utilize IR radiation to create a high quality monochromatic video. These cameras normally contain IR Light Emitting Diodes or LEDs that emit IR light. IR light is invisible to the human eye, so these cameras can work undetected in total darkness with no available visible light.

Other functions for cameras include pan, tilt, and zoom (PTZ) options that allow the camera to move about and change its target area or field of view as well as utilize telephoto lens technology to enlarge objects. These features can be controlled manually by remote control or automatically by programming which can be used to track objects or individuals. An example of automatic PTZ is tracking the movement of a car through a parking lot or an individual in a specified area.

Security system camera dvr records the video images in the form of a video data file on the dvr for later viewing or archival purposes. Further, the dvrs can be purchased in a variety of storage capacities to fit any application.

A security system camera dvr or digital video recorder is one of the most common security and surveillance packages used by homeowners, police departments, security agencies, governments and many businesses today. Modern technological advances have yielded a variety of interesting and useful features while keeping prices affordable for not only corporate applications, but for residential applications as well.
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