Posts Tagged ‘ digital camera’



How to Catch Vandalism

Written By:
Tuesday, December 13th, 2011

How to Catch VandalismIs your home a target for vandalism or “harmless” pranks from neighborhood kids and do you feel like you need a “How to Catch Vandalism for Dummies” book? Does your business suffer from the same thing?  Identifying the perpetrator(s) and getting documentation evidence of the actual act of vandalism is easier and much less expensive than you probably think.

One of the best and easiest solutions on how to catch vandalism, including video images of the act itself and the perpetrators that are performing the act, is to use a digital video camera.  Having an outdoor camera to watch your property is like having a full-time security guard on duty. With only a single camera or two, you can tell who’s driving up the driveway or see who’s knocking at the front door. And if you’re away, you’ll be able to know if someone was in your back yard retrieving that soccer ball that was accidentally kicked over the fence, or if someone decided to take a dip in your pool.

Use a “Vandal Resistant” Camera


The most common question we get about cameras is “which one should I use?”  Each situation is different and may require a different camera.  Security Camera King offers 10 different vandal resistant cameras for you to choose to solve your problem of how to catch vandalism.  A common issue when utilizing security surveillance is that the cameras become the target of vandalism themselves. The security cameras are the most visible component of the surveillance system and, if installed correctly, they are in the areas of highest risk. Vandal resistant dome cameras were designed with this in mind. Tough metal housings with remarkably tough Lexan domes will deter all but the most determined criminal.

We suggest either a true day/night camera(s) or an day/night infrared camera(s) so that you can monitor your property 24 hours a day.  In fact Security Camera King’s bundled entire system deals all contain vandal resistant infrared day/night dome cameras.

You will also need to determine if you have any situations that require special features such as a really high Wide Dynamic Range or WDR.  When it comes to how to catch vandalism you will want to take advantage of every aspect that can benefit you.  Take a look at our 10 vandal resistant dome cameras first and see if there isn’t one or more there that would apply to your situation.

Gather your Documentation

Most people are confused when we say gather your documentation because they think we mean written pages.  However, when we say gather your documentation, we mean gather your digital color video files that have recorded the vandals in the act and may even provide identification as to who is committing the crime.

You can use a USB Flash drive or the CD/DVD recorder that comes standard with some of our DVRs to prepare a disk(s) to offer to law enforcement, insurance agencies, and prosecutors.  There’s nothing more convincing than digital video footage to document the destruction.

What Kind of DVR (Digital Video Recorder) do I Need?
Once again, each situation is unique and so the selection of the DVR will also be unique.  You will need to consider how many cameras (channels) will be needed to do the job (in the security video industry, the word “channels” often means cameras).  Whether you want a CD/DVD recorder included to make backups and record footages of the vandalism being committed and want kind of resolution and frame rate you think you will need to record your cameras.

If you’re stumped on this decision or any decision pertaining to setting up a digital video surveillance system, please contact one of our experts for help.  They will be glad to speak to you in order to help you design your system and determine what type of equipment you will need.

All of Security Camera King’s DVRs are the highest quality DVR for that category.  Once you take a close look at what we have to offer we think you’ll be amazed at the quality, performance, and features our DVRs have to offer compared to any other in the industry.

Contact Us!

Whether you need help on how to catch vandalism, or specific help on what type of camera, DVR, or monitor to use, how to design and setup your system, etc. our security experts are there to help you decide.  You can contact them on-line using our “Live Chat” or you can telephone them at 866-573-8878 Monday through Friday from 9AM to 6PM EST.

 

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CCTV Digital Camera

Written By:
Monday, January 31st, 2011

If the Digital Video Recorder or DVR is the heart of a digital video security system, then the CCTV digital camera must be the eyes. The cameras used today are top-notch technological wonders that provide high quality color video images. The have a vast selection of optional features that make their use extremely flexible and easy to use under almost any application.

A Closed Circuit Television or CCTV digital camera are the eyes of a digital security system because they are the devices that “see and capture” the action. There are many types of CCTV digital cameras available but they all “see and capture” using one of two similar methods. To describe how a CCTV digital camera works without getting too technical, we’ll tell you about their sensors and other parts of the cameras and how they integrate to get the job done.

Let’s divide the average CCTV digital camera into three parts: 1) The lens; 2) The sensor; and, 3) The analog-to-digital converter and all other supporting electronics.

The Lens
There are essentially two different type of lenses used in CCTV digital cameras. The first we’ll mention is the “fixed lens.” The fixed lens is so named because the focal length of the lens is stationary or fixed. This indicated that the lens as a definite range of focus as well as a fixed field of view. These lenses are excellent for cameras that are used in applications where the distance between the subject or object being recorded and the camera is usually constant. Examples of these uses include retail store shoplifting coverage, equipment monitoring, gate entrance monitoring, room surveillance, etc.

The varifocal lenses have a variable focal length. This means that these lenses can zoom in or zoom out on subjects or objects and be manually focused. This lens is a bit more expensive than a fixed lens. Applications for this lens would include uses where the camera position is changed on a regular basis or the field of view is changed often.

Either type of lens has basically the same function: Manipulate the light emitted by the image in the camera’s field of vision, so that it presents an incredibly high quality image that is focused on the cameras incredibly small sensor.

The Sensor
There are also two different type of lenses used in CCTV digital cameras. They take the focused light image and convert it into tiny electrical charges that can be used to create a digital video file or image. The two sensors used are the Charged Coupled Device or CCD and the Complimentary Metal Oxide Semiconductor or CMOS. At one time the CCD produced a high quality image than the CMOS at a slightly higher cost in price for the sensor. The CMOS on the other hand, used far less electricity to complete the task of creating the electronic video image. As time and technology progresses, the newer CCDs use less electricity and the newer CMOSs produce a higher quality image so that they are relatively similar in power usage, quality and cost.

Whether it’s a CCD or a CMOS, the sensor, with the help of supporting electronic circuitry, pass the image which at this point is in analog format, to the analog-to-digital converter.

The Analog-to-Digital Converter
CCTV digital cameras produce their finished product, the video image, in a binary or digital format. Since the equipment used along the way to produce the image does so basically using analog methods, the analog-to-digital converter is necessary to transform the analog signal into digital data. This converter is usually a relatively small Integrated Circuit (IC) chip that is designed specifically for this purpose. It must be very powerful and extremely fast in order to convert the signal for use in real-time (live).

When the signal leaves the analog-to-digital converter, it is now in digital form and ready to be sent to the DVR and/or monitor. This is done by one of two different methods as well. Either the signal is carried to the DVR using a video transmission cable (which in most cases is an RG-59 coaxial cable), or wirelessly converting the signal into a radio signal that can be transmitted for the camera to a corresponding receiver.

This should give you some working knowledge on how a CCTV digital camera works. If you need additional information or considering a purchase, please contact one of our security experts today using on-line “Live Chat” or by toll-free telephone at 866-573-8878.

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Outdoor Motion Activated Security Camera Light

Written By:
Tuesday, December 28th, 2010

An outdoor motion – activated security camera light offers triple action security against break-ins, vandals, and criminal activity around the home or office. This camera is excellent for monitoring and protecting residences and commercial properties alike.

The outdoor motion – activated security camera light is an all in one miniature security system unit. The unit consists of a strong beam (up to 500 watts) halogen floodlight that is attached to a Passive InfraRed (PIR) motion detector. Whenever the PIR detects motion, the floodlight turns on, projecting a brilliant light on the intruder.

That’s just the beginning. In addition to the flood light and motion detector, the outdoor motion – activated security camera light also contains a state-of-the art high-quality color digital camera that can document the intruder and their activity. This constitutes triple action protection for your home, business or property.

The PIR motion detector is connected to a relay within the unit’s housing. It can detect changes in infrared radiation in its field of view. When a significant change in the infrared signature occurs (for example, when a person walks in front of it) the PIR triggers the relay to the “On” state, turning on the floodlight and the camera.

Most outdoor motion – activated security camera lights contain a high-quality color digital video camera that can also produce still photographs. Thanks to the nature of how a digital video camera works, these units are able to do this task with ease. Here’s how it works.

Outdoor motion – activated security camera lights contain a  a sensor that transfers light energy into electrical energy that can be measured. Images in the camera’s field of view reflect light, which is then focused by the lens onto the sensor. The sensor is either a Charged Coupled Device (CCD) or a Complimentary Metal Oxide Semiconductor (CMOS). The sensors’ measurements are converted into binary digital data.

On standalone digital video security systems, this data is sent to the Digital Video Recorder (DVR), which is much like the hard disk drive of a personal computer. The outdoor motion – activated security camera light has its own on board microchip circuitry that does this instead. It also saves the file to a hard disk type of storage device, usually comes with on-board memory (16 Mbs for example), and a Flash card memory device that accepts replaceable memory cards, (such as a SD card). These files can then be transferred to a computer where they can be viewed.

How can one outdoor motion – activated security camera light provide both still photographs and digital videos? The old movie projector is a good example of how it works.

Before the “digital age” movies were made using a camera that took several pictures per second. Generally to the human eye, 15 to 30 pictures (or frames as they are now called) per second gives the impression of fluid motion. So for every second of movie that we watch, 30 frames (pictures) flash through the projector.

The digital video camera works on the same principle. However, instead of using film tape, the camera creates electronic digital data. So the outdoor motion – activated security camera light can provide either high-quality still photos or digital video.

Another feature of outdoor motion – activated security camera lights includes an adjustable illumination period of the floodlight. Most lights allow an adjustable “on” time from one to five minutes in length. Depending on the settings, the camera may or may not capture images for the full duration, (the larger the memory, the more pictures and/or video length). Many cameras commonly take 3 still photographs or up to 10 seconds of video each time that motion is detected.

Many cameras also provide a time and date stamp. When the camera is installed the on-board clock and calendar are set. Every time the camera is triggered to operate, a time and date are super -imposed over the image to document the exact period of time recorded.

An outdoor motion – activated security camera light performs the functions of a floodlight, motion detector, and camera all in one. It offers triple action security protection for a fraction of the cost of a total digital video security system. These units are not only a handy combination of security features but are easy to install and set-up as well.

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