Posts Tagged ‘ indoor cameras’



8 Camera Dvr

Written By:
Monday, October 24th, 2011

The 8 camera Dvr system is a popular security system choice for applications requiring durable day and/or night indoor or outdoor security and surveillance.  There are many things to consider when purchasing an 8 camera Dvr system; so let’s examine a few.

First, the 8 camera Dvr system may also be referred to as an 8 channel Dvr system.  Usually, security camera systems refer to each camera as a “channel” hence the terms 8 channel system, 8 channel receiver, and so forth.

If you are using an 8 camera Dvr with outdoor cameras, the cameras must be an outdoor rated type.  This means they can withstand the forces of nature including extended inclement weather.  Cameras of this type are normally rated as IP66 or IP67.  This rating is the Ingress Protection rating based on an international electrical standard that specifies what the camera is protected against.  The first digit following the IP, in this case “6,” means the camera is dust tight, that no dust can enter the casing or components of the camera.  The second digit refers to the protection against water.  A rating of “6” means the camera is protected from ingress of powerful water jets and a rating of “7” means the camera could be submerged in water up to 1 meter in depth.

Generally, outdoor cameras will be either night/day vision cameras or infrared (IR) cameras.  Regardless of the type, this has no effect on the operation of the 8 camera Dvr.  Night/day vision cameras have a sensitive CCD sensor that can produce images in very low light conditions.  Infrared cameras contain a series of IR emitting LEDs that surround the camera lens to illuminate otherwise dark or no light conditions.  IR illumination is invisible to the human eye however the camera’s CCD sensor can detect IR radiation.  Therefore, the LEDs work like invisible lighting, flooding the absolutely dark target area with a beam of light undetectable to the human eye.

Also, an 8 camera Dvr system may utilize wireless camera technology.  This means that the cameras transmit their image to a receiver using either the 2.4 GHz or 5.8 GHz band without the need for transmission cables.  This can be incredibly beneficial in placing cameras in locations that are difficult to reach using cables or if the DVR is going in a concealed area.  A wireless 8 camera outdoor DVR system will also need an 8 channel receiver.

Regardless of the type of camera, this system will also include a Digital Video Recorder or DVR.   The DVR is basically the same device as the hard drive in a personal computer.  Once the camera has transmitted the signal to the system, the DVR stores the images or video in a file on the hard drive.  Generally, an 8 camera Dvr system will require a high speed DVR along with some sort of compression technology.

The compression technology is often called a CODEC, short for COmpression/DECompression utility.  Its job is to shrink the size of the enormous video file while maintaining good quality video images.  Security Camera King uses the latest most efficient CODEC available in their 8 camera Dvrs and it is known as H.264.

Since 8 cameras are producing video at once, the incredibly large file size of the digital video would exhaust the useful space of even the largest capacity DVRs.  So, file compression technology, software or hard-wired circuit boards, are used to compress the file size while maintaining the image quality while maximizing hard drive capacity.  The DVR saves the image until the disk is filled and when it reaches its capacity, the DVR continues recording over previously saved data.

One of the benefits of an 8 camera Dvr system is that it contains a CD/DVD writer.  These systems normally contain on-board or internal DVD writers.  These are excellent for backing up image files.  When a DVR is getting full, a DVD can be burned for archiving purposes before the DVR begins to re-write itself.  Also, another added benefit of a DVD writer is to produce back-ups or copies of certain image “footage” to provide to police departments or when needed as evidence.

Understanding the options available for an 8 camera outdoor DVR system with DVD recorder will help you make an educated, useful purchase that will fulfill your security and surveillance needs.  If you have any additional questions contact one of our security experts today.  We love to help!

 

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Home Surveillance Systems

Written By:
Thursday, March 17th, 2011

Home surveillance systems provide security, protection, and monitoring services that can give you peace of mind and keep your family safe.  These systems are based on digital video and digital data; because of this they have the explicit advantage of sharing the benefits of technological improvements in the personal computing industry.  This means exponentially greater performance at less expensive prices.

Typically, most home surveillance systems are component systems made up of three major components or pieces of equipment; the digital video cameras, the Digital Video Recorder or DVR and one or more monitors.  Digital video cameras may be mounted anywhere that’s advantageous to the user; however, standard applications normally provide for exterior perimeter coverage of the home including entrances, exits, and first floor or ground accessible windows.

Inside the home surveillance system can be “zone” type where coverage is based on specific areas of the home and cameras are normally placed in large rooms, hallways, lobbies, and the like or every room may be equipped with its own camera.  This is really a matter of the user’s preference, as are special use cameras.

Special use cameras on the exterior of the home can include a wide variety of cameras and situations.  For example, outdoor cameras (as well as indoor cameras) can be equipped with infrared illumination and the required electronics so as to provide 24 hour coverage, even in total darkness.

More specific uses for the exterior of the home include gate monitoring, driveway monitoring, garage and other detached building monitoring, pet area monitoring, and entrance monitoring.  These cameras can be standard “wired” types or they can also be wireless where the camera transmits a signal to a receiver that is located close to and cabled with the DVR.

Another useful feature for gate and entrance door cameras is two-audio.  Using two-way audio, the gate camera or door camera can act like a security guard that allows you to converse with whomever maybe at the door or gate before permitting them entry.  Each of Security Camera King’s home surveillance systems DVRs supports two way voice technology.

There are many other uses for exterior home surveillance systems’ cameras that are just too numerous to mention here.  The key point is that with all the basic and optional features that digital video cameras have available to offer; they are so versatile that there is almost no situation where they can’t be used.

In addition, there are probably just as many special uses for cameras inside the home as there are outside.  As mentioned earlier, cameras can come with infrared video capability so that when a room is in total darkness, a clear, crisp highly detailed black and white video can still be created.  These cameras are especially useful as baby monitors.   Placed in the nursery with a full open view of the crib/bed and baby/child, these cameras can monitor the infant all night long without disturbing them.  (The infrared Light Emitting Diodes or LEDs that are used to provide the infrared illumination cannot be seen by the human eye.)

Home surveillance systems for inside the home can also include cameras with motion detectors.  These cameras are connected to an on-board PIR or Passive InfraRed detector that turns the camera on for recording only when motion is detected.  The cameras are useful as alarms as well, for the DVR if so equipped, can be programmed to send and email every time the camera is activated.  Furthermore, these cameras save a tremendous about of DVR hard disk space since they only record when motion is detected.

Another highly specialized use indoor home surveillance systems camera is the hidden or disguised camera.  Modern technology has paved the way for these relatively new cameras.  The units are so small that they can easily be hidden inside other normal working objects.  For example, if you need a camera to monitor your home office while you are away, but feel that a mounted camera may appear obtrusive or aesthetically displeasing, you can use a hidden desk clock camera.  The camera is hidden inside the stylish full operating model of a desk clock.

Security Camera King offers all sorts of home surveillance systems and very competitive prices.  We offer 4, 8, 16, and 32 channel systems that come complete with cameras, cable, connectors, power supplies, and a DVR.  We feature three different types of DVRs; the entry level “Elite Mini,” the full enterprise level “Elite,” and our top of the line “Ultimate.”

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Security System Devices

Written By:
Wednesday, December 8th, 2010

There are many security system devices. For the sake of this discussion, we’ll categorize security system devices into two separate groups, digital video security camera systems and non-video security camera systems. In the following article we’ll discuss what some of these devices are for both categories.

Our two arbitrary security system devices categories have both benefited by advanced electronic circuit and computer technologies. Improvements in these technologies have directly or indirectly influenced security system devices such that these devices more efficient and cheaper, and in some cases, has made owning a device possible when it wasn’t possible to do so in the past.

Digital Video Security System Devices

Digital video security systems generally consist of three basic components. While it’s true that there may be additional devices based on the user’s choice, nearly every system will contain or use each of these three components: They are 1) digital video cameras; 2) Digital Video Recorders or DVRs; and, 3) Monitors.

Digital video cameras can be further categorized into two types themselves, based on where they are used. Indoor cameras are used in situations where they are not exposed to weather and other outside elements. Outdoor cameras are enclosed in a protective case so they can withstand exposure to weather and the elements.

Both indoor and outdoor cameras have many features that allow them to be used as highly specialized security system devices. How they do this is outside the scope of this article, however we will list some of these devices according to the features that seem to qualify them as different types of security system devices:
• Wireless Cameras;
• Very light sensitive low-Lux day/night vision cameras;
• Night vision infrared cameras;
• Pan-Tilt-Zoom or PTZ cameras;
• Camera that record video and audio;
• Internet Protocol or IP ready cameras that can use the internet as a vehicle for networking; and
• Cameras with motion detector switching.

DVRs contain a Digital Signal Processor or DSP that reads the camera data and uses it to create a digital video file. This file is viewed on the monitor and or stored for later used on the DVR. Typically, the number of video inputs the DVR can handle at one time (also called “channels”) dictates the number of cameras in a one DVR unit system. If we consider different types of DVRs as security system devices, here is a list of some of the more common:
• Four, eight, and sixteen channel DVRs;
• DVR cards that use a personal computer as a DVR unit;
• Wireless DVRs;
• Internet Protocol (IP) ready DVRs; and,
• Miniature DVRs that use miniature storage media such as SD cards or thumb drives.

Monitors are used to view live video or recorded video. Most monitors today are color LCD monitors, just like the ones used for personal computing. Security system monitors may differ from typical computer monitors in the way they connect to the DVR or security camera. These DVRs may have additional connection types that may not be typical of computer monitors (such as BNC connectors).

Non-digital Video Security System Devices

The other category of security system devices is the non-digital video security system devices. For our discussion, this generally means security alarms. Most security alarm systems contain two major components, the sensors and the master control center/dialer.

The sensors are used as type of switch to monitor a particular state of an object such as being open, closed, or in motion. When the sensor has detected the desired trigger, it either closes a circuit with the master control panel or sends a wireless signal to the master control panel to notify it of the change. If we consider different alarm sensors as different security system devices then we can provide the following partial list:
• Door and window sensors;
• Temperature sensors;
• Humidity sensors;
• Poll sensors (detect the presence of someone or something);
• Motion detectors;
• Smoke and fire detectors;
• CO (carbon monoxide) and other chemical sensors;
• Light sensors; and,
• Sound sensors.

Master control panels coordinate the sensors and the alarms, including autodialing telephone numbers and playing a message to the receiving party, if equipped.

This is just a small example of the many security system devices that are available at Security Camera King. Check out our on-line catalogue of items if you are interested in purchasing any security system devices.

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What is a Good Security Camera System?

Written By:
Tuesday, September 14th, 2010

In this article we will attempt to answer the question, “What is a good security camera system?”

The answer to this question, is not always easily answered, as there are many good security camera systems and what may make a good security camera system for one application, may not work well for another. Without using specific brand names, let’s take a look at some of the characteristics that any system should have to qualify as “good.”

First, any good security camera system has got to have good technical support. Could you imagine purchasing an automobile without support? What would you do if you had an engine breakdown but no one could repair it? What if a warning light came on in your dash and you had no idea of what it meant? Would you purchase a personal computer without support? Probably not, and you wouldn’t want to purchase a security system without support either. So the first characteristic of a good security camera system is full support from installations to repairs.

Next, a good security camera system is a system that can perform the tasks that you need to accomplish your security and/or surveillance objectives. This may seem obvious, but it’s not always as easy as it sounds. All too often security camera system vendors will try to sell a security camera system based on what they have available, and not based on what you specifically need.

For example, a vendor may have an ample supply of a particular indoor camera in stock and offer a package deal that includes eight of these cameras. However, you may need a system that contains 6 indoor cameras and 2 outdoor cameras.

Good security camera systems are component systems. They consist of several different pieces (components) that all work and interact smoothly together to produce the output of a high quality system. Therefore, a good security camera system is a system that is offered by a dealer that allows you the flexibility to create the system with the exact components that you need. In the example above, eight indoor cameras does not satisfy the requirement for 2 outdoor cameras. Therefore, if this system doesn’t provide the flexibility to include 6 indoor and 2 outdoor cameras, it’s not a good security camera system.

Another answer to the question, “What is a good security camera system?” includes the word “quality.” No one wants a camera that shuts down after one week of operation or a Digital Video Recorder or DVR that crashes after three weeks or a monitor that won’t work. While it’s true that there are no specific quality standards of quality for a good security camera system, there are some things that you can look for to help determine the quality of the system. We’ll attempt to list some of these characteristics for the camera and DVR components.

Cameras
• Cameras use electronic sensor chips to create the digital video picture. There are two types of chips, a Charged Coupled Device or CCD and a Complimentary Metal Oxide Semiconductor or CMOS. Although the two chips are becoming equal in quality as technology increases over time, generally the CCD produces at least a slightly high quality video picture.
• The size of the sensor chip can be directly proportional to the quality output of the video image. Usually, a 3/4″ CCD produces a larger, higher resolution video than a 1/4″ CCD.
• Outdoor type cameras and equipment should be specifically rated for outdoor use. These cameras and equipment should have an IP rating (Ingress Protection code) of IP65 or better.
• Cameras should have at least a one year warranty

DVRs
• A good quality DVR should have several different video outputs to support more than one monitor and more than one output connection type (HDMI, VGA, or BNC for example).
• The DVR should support the best CODEC technology. A CODEC is a COmpression/DECompression utility. It is used to shrink the size of a the digital video file without sacrificing much quality. This allows you to maximize your DVR’s hard disk storage capacity.
• An easy, intuitive graphic user interface for control of the DVR and cameras.
• At least a 1 year but preferably a 2 or 3 year warranty.

This should give you some basics to help you answer the question “What is a good security camera system.” If you are still uncertain or have any questions contact one our security experts by Live Chat or telephone today.

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