Archive for the ‘ Product Cameras ’ Category

Home Security Cameras

Written By:
Monday, April 30th, 2012

Home Security CamerasHome security cameras are consistently effective in keeping properties safe and undisturbed. There are various types of cameras available, all of which can be custom fit to each household. As each household has a different configuration, there are numerous cameras to capture the most integral points of the home. Home security cameras are often non-invasive, and will not distract from the interior of the household. Each security camera will add a new dimension of safety to the household. It is now possible to view the security camera feed from a distance with applications that allow for a direct feed transfered onto an iPhone or laptop computer. These small and efficient home security cameras are the best means for keeping a home safe from intrusions. There are many features and components available with home security cameras, which makes it vital to find the one ideal for each instance.

One of the most advanced home security cameras is the Vivotek PZ8111. This heavy yet compact camera is perfect for larger homes or gardens. It has a pan tilt which allows for maximum coverage and span of focus. The 10x optical zoom lens is capable of tracking any movement or diversion. The camera has a motorized pan and tilt, which is most efficient for tracing movement across of large spaces. The pan spans from -150 degrees to +150 degrees, with a tilt of -45 degrees to +90 degrees. This coverage is ideal for not letting any perpetrators slip away unnoticed.

One of the most important feature of this camera and others similar to it is the addition of the iCamViewer application. This application allows the camera to monitored anywhere in the world with an iPhone or iPad device. This allows for complete safety and peace of mind while on vacation, which makes this addition an immense asset to the home security arsenal. Along with this application comes a remote control feature that corresponds with any laptop computer. It is now possible to trace the entire house and take notice of anything suspicious. This type of technology has not been available in home security cameras for very long, but the addition has made all the difference in upping home security possibilites.

There are many designs of cameras which can be mounted onto any styling of housing. Certain home security cameras are perfect for mounting in a large driveway. These cameras are often heavier and film a much larger dimension of space. Sturdier mounting cameras are perfect for outdoor areas or in the backyard. Another popular design for outdoors is roof-mounted CCTV camera. Closed Circuit Television cameras are perfect for capturing corners outside of buildings. These can be mounted at an angle above a garage for maximum coverage and protection.

One of the most popular outdoor CCTV cameras it the BIPRO-S600VF12. These have a high resolution of over 600 tvl for the best picture quality. It is crucial to have a high-resolution camera or any perpetrator may become unidentifiable. Another very important feature of these cameras is being weather resistent and durable. Most high-end cameras can stand heavy gusts of wind and hail, but it is important to test the durability to prepare for any possible conditions.

Modern home security cameras have very clear day modes and night vision modes. Most of these cameras will switch between night and day modes automatically and efficiently. With an efficient night vision system these cameras can get a clear view of any perpetrator.

It is important to decide on how many home security cameras are needed for the area. The size of the house and lot will determine whether a single camera or multiple cameras are needed. Single camera sets are ideal for watching over a young child’s room or a garage. Yet sometimes multiple cameras are necessary even for smaller homes in order to properly protect the lot. It is important to place cameras near any doors or windows, as these are the areas in which perpetrators most likely enter. A security camera mounted on the in the main areas of the house will be more than enough to catch all suspicious activity.

If a home is in a high-risk area it may be necessary to have 16 cameras or more. Such a large number of home security cameras is perfect for expensive areas, as it will defer criminals from entering the lot. The presence alone can be enough to thwart a potential invasion, making a large security system a sound investment. Most large security systems are equipped with an online or DVR recording system to maximize security. This allows for constant streaming of a lot while at a distance. The entire premises can be viewed in real-time and can be saved conveniently for later.

Home Security CamerasIf 16 or more cameras seems too drastic there is the option of installing fake home security cameras as well. Along with regular security cameras, these will alert criminals that the premises are under constant surveillance. Fake cameras help to keep the cost of home surveillance down while maintaining the presence of security.

The best camera for detecting unsuspecting criminals is the mounted dome camera. This home security camera is mounted on the ceiling in the corner. These cameras often have a wider field of vision than most and are perfectly capable of high-definition surveillance. The perfect imagery is accompanied by an automatic night-vision toggle which will adapt to any levels. A domed camera can produce crystal clear images in the darkest levels up to 40 feet away. This allows for optimal coverage of the lot and will keep an eye on all intruders. Domed cameras are usually placed upon a ceiling but the wall is just as acceptable.

Many home security cameras are up to date with Advanced Digital Noise Reduction services. This helps to add over 30% to the recording storage and in turn gives the best possible sound. Every nuance will be captured with a high-end home security camera. With the rapid advancement of technology it is even possible to get the same protection with low-end models as well. Many cameras are now equipped with digital and wireless transmissions. What was once a difficult procedure of wiring the camera up is now an effortless task. Instead of placing wires inside or around the walls, cameras are simply mounted and the digital transmissions take care of the rest. The size of cameras has also greatly decreased as many high-end cameras are now the size of a cell phone. These smaller cameras will not capture the same range of distance as larger ones, but they are perfect for individual rooms or outlets.

Many home security cameras are now easily mounted upon a computer for instant wireless transfer. These cameras are often the best for dormitories or apartments as they allow for undetected surveillance. These security cameras often blend-in as nothing more than a webcam, yet they give a constant feed of the entire space. These cameras also work well in offices, markets and other small businesses where space is limited. These cameras can be programmed to alert a designated device when any movement is detected. The camera will send a direct feed to a cellphone or laptop computer whenever the motion detecter is activated.

There are many home security cameras available for those who live in wooded areas. These cameras can be mounted on trees to help guard any intruders entering from the forest. The Primos Truth Camera is one of the most highly-regarded cameras of this kind. It can be mounted securely onto any building or tree and will give a constant high-resolution stream of footage. This can help to thwart illegal hunters who may enter the property or even catch unwanted animals. These cameras are able to switch to night-vision instantly as the sun goes down. The Truth Cam contains over 35 infrared LEDs which allow for optimal nighttime coverage. Outdoor home security cameras can also save energy by only switching on when activated through the motion sensor. Since these cameras are often mounted in an outdoors terrain they are equipped with password protection security devices. This allows the camera to not be switched off or altered in any form. Most outdoor security cameras are not wireless as they are usually in a wooded area. Many are quipped with an 8 gigabyte SD card to store all of the footage and sound acquired.

The best home security cameras are the ones that come in complete packages. Nothing keeps a home safer than an entire system devoted to security. Purchasing an entire security kit makes installation and setup easier than before. Every camera is already programmed to transmit the feed to the designated server and all that’s left is mounting each individual camera. Most kits include wireless cameras and a remote control which allows for constant acces to the security camera’s live stream.

Home security cameras are now more affordable and efficient than ever before. These high-quality cameras are the best means of protecting a home or lot. Home security cameras are a great visual deterrent to any potential robber. Home security cameras will allow the perpetrator to be brought to justice with ease. The best means of securing a home or office is through home security cameras.



Security Equipment Supply

Monday, January 16th, 2012

Security Equipment Supply The World of CCTV Cameras is Bigger Than Anyone Thought

The world of security equipment supply is considerably vaster than what most people would think. For instance, many people think there are only two or three types of audio recording devices outside of traditional tape recorders. Moreover, they wouldn’t assume that they have much to do with private security. Audio recorders, after all, are the tools of lazy college students. However, they’re also excellent for monitoring areas with compromised security or recording the results of an experiment. They’re perfect for anytime that someone isn’t in a room, but has to hear what was going on in it. Modern audio recording devices have long recording times, and their recording medium usually involves high quality MP3 files. Nevertheless, they do make a great gift for college students who have a reason to record lectures.

Network Internet Protocol security cameras are a growing segment of the security equipment supply marketplace today. An IP camera module can be connected to a particular computer by way of the Internet. This means that two cameras could be on the same network, despite very vast geographical distances in the real world. Businesses that are particularly large might see this as a method of maintaining useful CCTV surveillance over a number of facilities from a central location. Professional security monitoring organizations can also receive video from a number of cameras from any location. These individual cameras might even be located in different countries, if someone really wanted to push the envelope.

Some factories work with harmful materials, and these sorts of facilities represent a unique segment of the security equipment supply industry. Explosion proof cameras are an example of very well made machinery. They are designed for use in areas that are work with volatile chemicals and gases. Electrical components are a hazard in this sort of environment, since they can ignite flammable materials. However, explosion proof cameras are delivered in a protective housing that is designed to prevent this from happening.

Naturally, many industries are involved in manufacturing products that are otherwise quite hazardous. This is not to say that they are in any way illegitimate. Indeed, the security equipment supply industry does not knowingly pander to any business that engages in questionable activities. Instead, the safety and health of individual employees who work in the facilities that make many of the products that private citizens use in their day-to-day lives is a paramount concern. Factories that work with dangerous chemicals should be sure to select the correct piece of equipment for the job. Explosion proof cameras might make up part of the ideal CCTV system in this sort of environment.

Hidden cameras are another segment of the security equipment supply market that might sound like they’re designed for some unlawful use. No legitimate security equipment supply firm condones the use of this technology for any unacceptable or illegal purpose. Instead, they are supposed to be used in situations where covert monitoring operations are necessary to maintain safety. The smallest of these devices are the size of a screw’s head.

There are also many types of security cameras that are designed to look like something else. For instance, a covert camera could be delivered in the body of a ballpoint pen. This is perfect for situations where the physical image of a security camera isn’t desirable. Considering the fact that wireless installations can make it so that a camera can be dropped anywhere, this is a perfect way to set up a portable monitoring station. However, even if one were to have every type of camera on the market today, they wouldn’t be much good without accessories.

Security equipment supply stores are all about being prepared, and this can also include having ready access to spare parts. When security equipment breaks down, it usually does it at the least opportune times. If an organization has extra parts on hand, they are more likely to be able to weather the worst accidents and breakdowns. Power supplies, lenses, microphones, cameras and monitors are all spare parts that are

These some components can be used to upgrade an existing installation. With the appropriate purchase of accessories, legacy technology can be interfaced with newer technology. There are those that always want to upgrade their basic devices as soon as new machines come out. For those sorts, there is a vast catalogue of new pieces of camera equipment. However, engineers who would rather work with their existing installation shouldn’t be viewed as people who are stuck in their ways. Instead, the security equipment supply industry has a number of products that can meet their needs. New cables, cameras, lenses and microphones are perfect for those that want to replace some broken components.

In many cases, broken components are really all that need to be replaced. If a camera goes bad, only a single new camera needs to be purchased. Having a good rapport with one’s equipment dealer can go a long way to always having a ready supply of such equipment on hand. When one piece goes bad, it is much easier to find a replacement if one knows where to look. Security equipment suppliers are also a great place to look for hard to find components. Many legacy cameras or monitors will require an oddball adapter, and some of these parts have become rare. However, a well-stocked supplier shouldn’t have too much of a problem.

Fake cameras represent the sort of accessory that even those with established installations can appreciate. If a business has two or three cameras, expanding the actual number of cameras is an ideal way to expand coverage. However, this can be extremely expensive and finding the personnel to monitor each of these new units might be impossible. Purchasing several fake cameras can give the illusion that a CCTV network is much larger than it really is. Critics of this sort of behavior might bring up the fact that shoplifters are already familiar with the practice. However, they have no way of knowing which cameras are real and which aren’t. Therefore, this can still be an effective way of reducing the amount of merchandise that gets stolen.

Of course, there are those who need to investigate things from the other side of the surveillance equation. Many security equipment supply agencies will also stock counter surveillance devices. Those who are suspicious of bugs or covert wireless camera technology will certainly find numerous uses for these sorts of devices. Again, this sort of equipment is not intended for criminals. Instead, people who have a genuine reason to believe they are being unlawfully scoped out should be able to take comfort in the results of a bug check.

Security cameras themselves are a very popular product, but digital video recorders are also important for those who want to capture footage. Naturally, there are plenty of businesses that continue to use VCR technology to capture video. However, DVR technology will often allow people to capture a great deal more of footage than a traditional VHS tape. Moreover, they might be able to save some space by eliminating the numerous shelves of VHS tapes that often have to be stored in video surveillance rooms.

There are also small versions of the DVR units available for those who have extreme space concerns. As well as taking up less space, these might attractive to those who are on a very stringent budget. Budgetary concerns have always been one of the most important driving forces behind decision-making among business owners. The least expensive solutions are often the ones chosen. Nevertheless, no one wants to get stuck with something that is so cheap that it doesn’t work. Miniature DVR systems are usually inexpensive when they’re purchased for use with CCTV networks, but that doesn’t mean they’re poorly made in any way at all. In fact, many people might go out of their way to order them since they take up so little space. Naturally, an in demand product isn’t the sort of thing that is associated with cheap quality.

There are various designs of security DVR units that might help people in different situations. Models are available that ship in 4, 8, 16 or 32 channel modes. Network Video Recorders are designed to operate with Internet Protocol cameras. Since IP camera technology represents a growing facet of the market, these DVR machines are probably going to grow along with them. Instead of working on hardwired principles, NVR machines are connected to the Internet or some other sort of computer network. This connectivity allows them to enjoy all of the advantages that other IP devices do. Since IP devices can be connected through the World Wide Web regardless of their geographical location, these devices might be another good fit for those who are looking for something that can span the globe without requiring a large amount of infrastructure.

From a purely technical standpoint, that sort of opinion is incorrect. The Internet relies on a massive amount of infrastructure that spans the globe just as much as its data packets do. However, that isn’t infrastructure that the individual security installer has to worry about if they’re working with IP technology. Nevertheless, there are those who are worried about what might happen if there was a major Internet connectivity blackout. Individual Internet connection methods could also fail. Thus, there are those who might feel that IP technology is entirely inappropriate.

Some security experts might also be afraid that an IP system isn’t secure enough for their purposes. Hackers aren’t as threatening as they might have been made to seem in the mainstream media, but the security equipment supply industry is all about being prepared. There needs to be a number of alternatives for those who don’t want to have to work with Internet technology.

People need to keep in mind that there is nothing that actually compels them to invest in technology that isn’t appropriate for their setting. Even in today’s world, a CCTV camera that sends an analog RF signal to a cable with a BNC connector can work just fine. A BNC to VGA converter system can even be used to make sure that it can interface with an LCD computer monitor, if something besides a regular television set is desired. In fact, the security equipment supply industry can be a great place to purchase these sorts of solutions in the first place. After all, most regular hardware and electronics stores won’t carry specialized equipment like BNC to VGA converter boxes.

Television sets that feature native BNC jacks can be quite expensive. Therefore, a BNC to VGA converter system can save some money if one already has a computer monitor lying around that isn’t getting any use. Of course, purchasing new computer monitors is far less expensive than purchasing a series of new televisions that ship with BNC jacks. There are still people who might really prefer the ability to plug their CCTV camera system straight into the monitor, since simple solutions are less likely to fail.

For this sort of engineer, a security equipment supply company should be ready to provide the appropriate equipment. There is certainly something to be said for reliable machines, even if they seem overly simply. Security equipment supply personnel aren’t the type of people who should be criticizing their cliental. Instead, they recognize that many people have a lot of experience in the field and know exactly what they want. While they might make suggestions, the customer is always right.

On the other hand, some people might know what their security needs is, but not what technologies are appropriate to solve their problems. This is where the security equipment supply industry is supposed to be helpful and reach out a hand to those who are in need. Anyone who wants to receive suggestions may, but once more, there is never supposed to be any pressure. Instead, they’re simply there to lend a helping hand and guide customers through the motions. Only an individual customer truly knows his or her own security needs, and this always had to be respected.



IP Security Camera

Written By:
Thursday, December 29th, 2011

Nothing has more “global” access in the digital video security camera industry than an IP (Internet Protocol) security camera.  These cameras use the Internet as the means for their transmissions so anyone with a broadband Internet connection and a computer can access these cameras. The outreach available for use and/or monitoring has been extended even further with the increased technology in cell phones, namely 3G and 4G broadband Internet access.  In the following article we’ll take a look at some Internet security camera systems and how they work.

How a Non-IP Camera System Works

How a Non-IP Camera System WorksFirst, let’s make sure we understand how a “non-Internet” security camera system works.   In this type of system, digital video security and surveillance cameras capture video footage and send the video data to the Digital Video Recorder or DVR via a closed circuit made up cable, usually RG-59 coaxial cable or CAT5 Ethernet cable.  There are wireless systems also.

The wireless system consists of an antenna and transmitter built into the camera.  The receiver is usually located near the DVR and is attached to it by the cable mentioned above.  This is still considered a closed circuit television system because even though the camera is transmitting its signal wirelessly in is done on a private, specified frequency.

The DVR stores the video on a hard disk drive (HDD) just like the HDD found in a personal computer.  In addition the DVR may also display the video in real-time (live) on one to several monitors for surveillance purposes.  Some IP security cameras also offer the capability of storing video footage locally on the camera.  A miniature DVR of sorts is built into the camer so that footage can be saved locally on portable memory/storage media such as an SD card.

The digital video camera is responsible for capturing a light image and transforming it into an electronic image.  It does this by using a lens to focus what can be a large field of vision onto a small electronic sensor which usually ranges in size from only 1/4 inch to 1/2 inch square.

One of two different sensor chips is used for this purpose.  They are the Charged Coupled Device or CCD and the Complementary Metal Oxide Semiconductor or CMOS. When light strikes these sensors they emit electrical charges which can be measured and used to create a video image.  The data that is created by these chips is actually analog in form until it passes through an analog-to-digital converter chip.  Another highly specialized electronic chip called a Digital Signal Processor or DSP insures the integrity of the data and may make any corrections that are necessary.

At this point, the camera passes the digital data along to the Digital Video Recorder or DVR whose job is to record the data and store it as mentioned above.  It does this by compressing the file into a fraction of its original size but still managing to maintain a high quality.  It does this by using a COmpression/DECompression or CODEC utility.

How an IP Camera System Works

IP Security CameraAn Internet security camera system is very similar to the above system, however once the data becomes digital, it opens up a whole new world of possibilities, especially including the use of the Internet.  There are basically two types of Internet security camera systems.  One system consists of cameras that are Internet compatible also called Internet Protocol ready or IP ready.  The other system consists of a DVR that has its own Web server technology and is called IP ready as well.

IP ready cameras contain their own web server technology so that they maybe connected to the Internet.  Instead of sending their digital data directly to a DVR, they send their data via the Internet to anywhere there is a client that wants to access the information.  Generally these cameras use two CODECs at once.  Many of the cameras pass the information on to the DVR using the MJPEG CODEC while streaming the information via the Internet for live viewing using the latest CODEC, H.264.

These cameras may direct their video via the Internet to a specific type of DVR that is designed for this purpose which is called a Network Video Recorder or NVR.  One of the advantages of this system is that multiple cameras in multiple locations can be recorded by the NVR.  These locations can be widespread, such as two or more commercial facilities that are located in two different cities.  An Internet security camera system of this type can lend itself to all sorts of networking possibilities.

Another type of Internet security camera system exists where the DVR is the IP ready device and it takes care of all Internet related inquiries.  In this system, the cameras are not IP ready and they send all of their digital data to the DVR.  The DVR then contains its own Web server technology and allows a client access to the system through the DVR.  All of Security Camera King’s featured DVRs have these feature built in to the DVR.

This internet security camera system records the video locally on the DVRs HDD, but it allows a user to control the DVR and in many instances, even the cameras (for example, PTZ movements) remotely.  As a matter of fact, these systems can ever be monitored and controlled using a smartphone and 3G or 4G Internet technology.

Additionally, the IP Camera/DVR can be set up to send alerts if the camera includes (and most do) motion detection.  Specifically, the user can have emails sent to then upon a variety of different triggers.

Wireless IP Security Cameras

In addition to using the Internet as the vehicle for delivering the digital data to its final destination, the wireless IP security camera may have the capable of connecting to the Internet wirelessly.  Although non-IP wireless cameras can be wireless as well, their wireless architecture is limited to a couple of different methods while the IP security system has the same wireless architecture but may have a few extra methods that only the IP camera can utilize.

Most wireless non-IP security cameras use a couple of different specific methods for transmitting their data.  Probably one of the most often used methods is the 2.4 or 5.8 GHz transmission method.  Some also use the 900 MHz technology, although as technology increases, there seems to be less of a tendency for using the 9000 MHz technology.

The 2.4 or 5.8 GHz technology boosts ranges possible of up to 5 miles Line Of Sight or LOS.   LOS means that the manufactures specification for range in length is dependent on objects that could impede the signal.  LOS means that the range is directly from camera transmitter to receiver, although this is an ideal situation and seldom does it ever really exist.  As a matter of fact if something does impede the LOS it usually reduces the range but does not entirely disable the wireless signal.  In fact, it usually just decreases the length of the range based on the material involved such as trees, walls, buildings, glass, etc.

Wireless IP security cameras on the other hand use a different mechanism for wireless transmission; normally wireless Internet known as WiFi.  WiFi is basically a brand name for products using the IEEE 802.11 standards.  Typically, wireless IP security cameras using WiFi have about a 65 foot maximum “hot-spot” to connect to their wireless router or modem that receives the WiFi signal.

Benefits and Differences of IP security Cameras

First and foremost IP network security cameras are capable of producing video at an extremely higher resolution than standard non-IP systems.  The highest resolution non-IP camera can record with a maximum regulation known as “D1” which is 720 x 480 pixels.  A 3 megapixel IP security camera can record at a resolution equal to 2048 x 1536 pixels; this is about 9 times greater detail than D1.

Equally amazing is another benefit involving networking.  Non-IP cameras send their signals to a DVR.  IP cameras send their signals to an NVR or Network Video Recorder.  So what’s the difference?  Non-IP cameras are normally located in one general geographical area, i.e. the digital video cameras in a department store connected to a DVR in the stores office.

As mentioned above, IP cameras use NVRs instead.  Most IP cameras can be located anywhere you want to put them (geographically speaking) and although they are in totally different locations they can all be routed to the NVR via the Internet.  In other words, you may own three small convenient stores in a city.  If each convenient store has IP cameras, their video signals can be sent to somewhere not even connected with the geographical area of the cameras such as a home, home office, or office location.

IP cameras are available in a myriad of types sizes and functions.  Security Camera King currently offers 3 different cameras:  1. 3 Megapixel IP Network Box Security Camera Product # IPBC-EL3MP; 2. 3 Megapixel IR Vandal Dome IP Security Camera Product # IPVD-EL#MPIR; and, 3. 18 x 1.3 Megapixel IP Network PTZ Security Camera Product # IPPTZ-EL13mpl18x.



High Resolution CCD Camera

Written By:
Thursday, December 22nd, 2011

Security camera lines of resolution are one of the factors that determine the size, fineness, or quality of a high resolution CCD camera. Most often, this figure is referenced in TVL which stands for Television Lines and is usually used to reference analog type video quality. Digital resolution is usually referenced in terms of pixels. Let’s take a look at both and see how the lines of resolution relate to high resolution CCD camera picture quality.

High Resolution CCD Camera

First, there are different formats of video that are used in different geographical areas. NTSC (National Television System Committee) format is used in North and South America, Japan, and Taiwan and many other areas. PAL (Phase Alternating Line) format is used primarily in Africa, Asia, New Zealand, Australia, and the majority of Europe. SECAM (in French, SEquentiel Couleur A Mémoire, meaning Sequential Color with Memory) format occurs in parts of Africa and in the Russian Federation. Without getting too technical, we will just focus on the NTSC format.

A standard NTSC analog video is composed of 480 interlaced horizontal lines. The number of horizontal lines displayed must be counted vertically, one above the other and so on. Security camera resolution in TVL is a specification that refers to the horizontal resolution which is the number of vertical lines visible in a certain area of a monochrome picture. The number of vertical lines is counted horizontally, one next to the other and so on. Although TVL is not exactly equal to the number of scan lines, it is directly affected by the number of scan lines.

Most security camera video is displayed in a 3X4 aspect ratio. This means a display in the shape of a rectangle, 3 units wide by 4 units high. Since horizontal resolution is equal to the number of vertical units (lines), it is actually the measure of detail that can be seen in 75% or ¾ of the pictures width. TVL then is the number of vertical lines that take up the space of 3 units. In other words, on a picture that is 3 inches wide by 4 inches high with a TVL of 420, there are 420 vertical lines in the 3 inch width.

High resolution CCD cameras come in a variety of resolution specifications based on manufacturer, uses, and price, but for comparison purposes, a typical “standard” CCTV camera has a resolution of around 380 TVL while a typical “high-resolution” CCTV camera has a resolution of 540 TVL or higher. At the present time it seems that the highest resolution CCD camera can attain a resolution of 700 TVL.

The TVL resolution number is an indication of the actual inherent quality of a security camera or monitor and should not be confused with the actual horizontal scanning lines of broadcast television systems.

These lines of resolution apply to analog type video. Digital video resolution is somewhat different. Digital video is still displayed in a 3X4 aspect ratio. However, the resolution is measured in pixels (small points, dots, or squares). Like the analog cameras, digital cameras have a sensor, called a CCD or Charged Coupled Device that captures the picture in digital format. The digital picture resolution is referred to in terms of pixels such as 352X240 pixels. The three most common digital security camera resolutions include 704 x 480, 352 x 480, and 352 x 240 pixels.

600TVL Color Day Night Vandal Proof Dome Surveillance Camera

Do not confuse the display resolution of the camera with the number of pixels of the CCD. The CCD sensor consists of millions of light sensing cells. The number of pixels produced by the sensor is called the pixel count. For example, a camera that can produce an image size of 640X480 would contain 307,200 pixels. A CCD capable of producing an image size of 3872×2592 would need to produce 10,036,224 pixels or 10 megapixels. This CCD rating in megapixels is often erroneously interpreted as the camera resolution. It more correctly indicates the maximum potential resolution the camera could produce when used in conjuntion with other high-quality equipment such as monitors, processors, etc.

To put everything in perspective, the following provides a summary comparison of both analog TVL and digital resolution with picture quality increasing as the number of the items increases:

1. 352X240 pixels (digital)

2. 330 TVL (analog)

3. 380 TVL (analog)

4. 480 TVL (analog)

5. 704X240 pixels (digital) and 704X480 pixels (digital)

6. 570 TVL (analog)

If you have any questions concerning high resolution CCD cameras please contact one of our security experts via on-line “Live Chat” or by telephone at 1-866-573-8878.


Pan Tilt Zoom Internet Cameras

Tuesday, December 20th, 2011

Pan Tilt Zoom Internet CamerasPTZ or Pan Tilt Zoom Internet cameras have the freedom of mobility to move about a horizontal and vertical axis thereby increasing the field of view for the camera.  In fact in some situations one Pan Tilt Zoom Internet camera may be able to perform the work of two or more stationary cameras.  In addition, the zoom function allows combinations of lenses to create telephoto enlargements for better clarity of objects that may be too far away from a normal camera lens.  These cameras also have the benefit of using the Internet too monitor and control the cameras.


Pan Tilt Zoom Internet cameras are excellent for use in retail stores where tracking and zooming in on a potential shoplifter may be needed.  Depending on the size of the store, the location of the camera, and the type of camera, it may be able to follow the shoplifter the entire route that’s made in the store.  Considering the high rate of retail theft that’s been reported lately especially in the major metropolitan areas, Pan Tilt Zoom Internet cameras are ideal for this purpose.


Pan Tilt Zoom Internet cameras are not limited to use in parking lots and retail stores; they have many other useful applications as well.  Let’s take a closer look at a Pan Tilt Zoom Internet camera.


Pan-tilt-zoom cameras are usually, but not always dome-type cameras.  These cameras are usually mounted on the ceiling with the orientation of the dome (and thus the camera lens) downward.  They may also be mounted on brackets on a horizontal surface (such as a wall or pole) with the brackets extending away from the horizontal surface just enough to provide clearance for hanging the dome in a downward position.


Pan Tilt Zoom Internet cameras may be indoor or outdoor models.  Outdoor models are basically the same as indoor models but are enclosed in a protective case or cover.  The outdoor cameras are normally rated according to the International Electrical code standard for the protection they offer from weather and other environmental elements.  This rating, called an Ingress Protection code or IP rating consists of two numbers that represent corresponding protection standards.  For an outdoor PTZ camera, look for a rating of IP66 or IP67.  Both ratings indicate the cameras are dust tight but the IP66 also indicates that the camera can withstand powerful jets of water from any direction while the IP67 also indicates that it could be submerged in up to 1 meter of water without damage.


Some PTZ cameras are set manually, but the majority of Pan Tilt Zoom Internet cameras marketed today are remotely controlled.  This is normally done by a keyboard or joystick control connected to the processing unit/digital video recorder or DVR.  If the camera is connected to a personal computer or the Internet, it may use the computer’s keyboard and/or mouse, or may provide software that has graphics that are used to control the cameras.


Pan Tilt Zoom Internet cameras may also come with software that can be used to preprogram the movement of the camera.  Programmable preset points will move the camera to that position and hold it there for a predetermined amount of time (often referred to as a “dwell time”).  After moving to each preset point and holding, the camera returns to the first preset point and repeats the cycle over again.  Different cameras have a different total number of preset points available. When looking for a PTZ camera with this option, check the specifications to make sure the camera can be programmed for the number of presets you will need.


Most Pan Tilt Zoom Internet cameras also have the ability to detect motion.  This is not so much a function of the camera as it is the programming or software that is controlling it.  However, once these cameras detect a moving object they have the ability to “lock on” to the object and follow it throughout the total range of view for the camera.  If cameras include the zoom option, they can even zoom in on the object while following it.  These cameras are usually referred to as “Auto-Tracking PTZ Cameras.”


PTZ cameras are incredibly versatile, easy to install, and reasonably priced making them an excellent choice for many business and residential applications.  Contact one of our security experts today for more information either via Live Chat or by telephone at 866-573-8878 Monday through Friday from 9AM until 6PM EST.