Posts Tagged ‘ digital video cameras’



Security Equipment Supply

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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.

 

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Security Camera with Audio Sound

Written By:
Friday, June 17th, 2011

Sometimes a good digital video image for security and surveillance purposes isn’t enough; that’s when a security camera with audio is needed for the job.  Today many digital video cameras as well as the Digital Video Recorders or DVRs include audio as an option.  If audio is an integral part of your system, be sure to check the camera’s specifications to verify that it is audio ready.

Many cameras, including IP (Internet Protocol) ready cameras, offer audio as well as video; in fact most IP cameras offer two-way audio.  Security Camera King has a vast inventory of two-way audio cameras, especially for IP ready units.  Here are a few uses for a security camera with audio:

  • A security camera with audio may be needed when it is important to record and document conversations;
  • Many home security systems include at least one camera that is often used as a baby monitor.  Having audio for a baby monitor increases the ability to keep a safe watch on a child;
  • Gate cameras.  Homes that are protected by fences and include a gate for access need two way audio in their gate cameras so the intentions of the visitor can be determined before entry to the premises;
  • Lobby cameras.  Offices, apartment buildings, secure high rises and other similar settings may rather use a digital video camera with two-way audio in stead of a costly security guard station right in the lobby.  The camera will provide a clear picture of the person wanting to gain entry and the audio can be used to find out their intentions and provide them with any necessary instructions.

How does the audio actually work?  The camera simply has a microphone built in or embedded somewhere usually in the camera’s casing or electronics board.  The microphone is normally a powered microphone and connects with BNC and cables to the DVR.  Most DVRs have several audio inputs and one to a few audio outputs.  If the camera is not equipped with a microphone, separate powered microphones may be purchased from Security Camera King.

Security Camera King sells a powered microphone, Product# MIC, that has both the power plug receptacle and the BNC plug-in for the audio cable.  The microphone is sturdy and small so as not to be obtrusive when it is installed along with a digital video camera.  The microphone produces studio quality sound and can be mounted just about anywhere.

WARNING:  There are state laws concerning the recording of conversations without all those participating in the conversation being aware of the recording.  Check with your own state laws to make sure you are complying with state, federal, and/or local laws if you are covertly recording conversations and video images as well.

For many states where a security camera with audio is used, a simple notice or sign posted in the area of the camera is sufficient enough. (For example, “These premises are protected by digital video cameras with audio.  Both video and audio is being recorded.)   Other states may have more elaborate requirements to be compliant.

If you have any additional questions concerning a security camera with audio, please contact any one of our security experts either via on-line “Live Chat” or by telephone at 866-573-8878 Monday through Friday from 9AM to 6 PM EST.

 

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IR Bullet Camera

Written By:
Monday, May 2nd, 2011

When looking for versatility in a digital video security camera nothing may offer you more than an IR bullet camera (InfraRed bullet camera).  Among the most popular types of cameras these days, the IR bullet camera usually comes packed with dozens of extra features, thanks to modern technology.  In the following article, we’ll take a look at digital video security cameras and how they work and especially how an IR bullet camera works.

There are three major types of digital video security cameras based on shape; the box type, the dome type, and the bullet type.  For many years the favorite has always been the box type.  Although box type cameras are somewhat obtrusive, they are versatile because you must purchase the lens separately, which allows you to change the field of view characteristics when ever you want.  Also, box type cameras are intended for indoor use, but can easily be converted to outdoor use by placing the camera in an outdoor rated housing.

Next in line is the dome camera.  Dome cameras are used indoors or outdoors but it seems as though the majority of their applications lean toward indoor installation and mounting.  These camera are fast becoming competitive with box cameras because they are small and unobtrusive, versatile with many features, and are easy to mount to the wall or ceiling.  Dome cameras can be purchased as indoor, outdoor, or indoor/outdoor models.  The can also be sold as vandal proof because once they are properly mounted on the ceiling it would be very difficult for a vandal to change the position of the camera.

Finally, there is the IR bullet camera or just a plain bullet camera.  They are so called because their shape resembles the shape of a bullet.  Bullet cameras may be mounted in several different ways.  Regardless if they are mounted on the wall or ceiling, bullet camera mounts normally have a bit of an extension arm that aids in getting the camera in the exact position you desire.  The down side to this is that the camera can become vulnerable to vandalism because it can be easily repositioned.

Now that we’re familiar with the types of cameras, let’s talk a little bit about how they work.  As a matter of fact, all three types of cameras produce digital video images in the same manner and this is how they do it.

The lens’ job is to gather the reflected light from images in it’s field of view, and focus them onto a very small censor chip (the chip ranges from 1/4 to 1/2 square inch).  The sensor chip is a high specialized electronic chip that can convert light energy into electrical energy.  The electrical energy can be measured and the values used to recreate the actual image as a digital video image on an electronic display monitor.

There are two different sensor chips that may be used and although they may go about producing the video image differently, the both produce the same result; digital video images.  The names of these sensor chips are the Charged Coupled Device or CCD and the Complementary Metal Oxide Semiconductor or CMOS.

These sensor chips are incredibly interesting because they possess an unusual trait.  They both are sensitive to near infrared radiation.  This is the type of radiation that is given off by TV remotes, DVD players, etc.  It is harmless to humans but even better for the security camera industry, it is completely invisible.  Therefore, it could be pitch dark and the camera can still produce a video image as if a spot light were shining in its direction.

It does this by the use of InfraRed producing Light Emitting Diodes or IR LEDs.  Generally, the more LEDs used to produce infrared “light” the longer the range of the camera in total darkness.  This is where the bullet camera comes in.

Due to its shape an IR bullet camera can really pack a large array of IR LEDs around its lens.  Some camera boast as many as 78 or more and a range if 300 feet.

To summarize, the IR bullet camera is a versatile digital video security tool.  It provides the same quality video as box camera but doesn’t require an additional housing.  It provides the capability for IR imagery like a dome camera but it has a much longer range potential due to the size and shape of the camera.

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Network PTZ Dome Surveillance Camera

Written By:
Monday, April 25th, 2011

If you are looking for an Internet based camera you should consider one of Security Camera King’s Network PTZ Dome Surveillance Cameras.  These cameras are very versatile with lots of additional features than just Pan-Tilt-Zoom.  In the following article, we’ll take a look at how these cameras work and give an overview on each of these types of cameras that Security Camera King has to offer.

First let’s talk a bit about the camera.  There are IP or Internet Protocol ready dome cameras that may or may not have the ability to pan, tilt, and zoom.  Like wise there are dome cameras that are not IP ready that do have the ability to pan, tilt, zoom.  The dome cameras we discuss in this article are IP ready AND have the ability to pan, tilt, and zoom.  Often times they may be referred to as Network PTZ Dome Surveillance Cameras.

IP cameras are regular digital video cameras with extra electronic circuitry built inside.  The extra circuitry is what is needed to support the camera on the Internet; in other words these cameras do not directly plug into a Digital Video Recorder or DVR.  What they do connect to is a broadband internet connection, usually through CAT5 Ethernet cable.

The camera contains its own Web server technology and once a few pieces of information are provided to the camera’s setup program, the camera begins streaming video via the Internet to either a Network server or to your PC.  You may see an overwhelming amount of 3 and 4 letter initials mentioned under network protocol.  Don’t let these bother you, this is merely a list of the different network protocols that the camera is compatible with.

One acronym that we should mention is PoE.  If the camera is PoE capable (and most, but not all IP cameras usually are) that means the camera can obtain the power it needs to operate with the Ethernet connection, hence the term PoE stands for “Power Over Ethernet.”  This means it is not necessary for you to install a power cable for your camera.

While PTZ camera don’t have to be Internet ready cameras, many IP ready cameras do have “Digital PTZ.”  PTZ or Pan-Tilt- Zoom are movement terms somewhat unique to the photograph and film industry.  Pan means the camera can move horizontally.  Tilt means the camera can move up and down.  Zoom is a function that narrows the FOV and enlarges the appearance of individual objects.

Security Camera King offers four different network PTZ dome surveillance cameras.  The following list those cameras and provides a short summary of their features.

Product# VDIP-D1L312 Indoor IP Network Dome Camera

  • Dual CODEC (H.264 and MJPEG)
  • Digital PTZ
  • Poe
  • Two-way audio communication
  • 3G mobile A/V surveillance
  • Multi profile streaming
  • 520TVL resolution

 

Product# VVIP-D1L312 Vandal Resistant IP Network Dome Camera

This camera is basically the same camera as above with the exception that this is constructed in a special way as to make it vandal resistant.

  • Dual CODEC (H.264 and MJPEG)
  • Digital PTZ
  • Poe
  • Two-way audio communication
  • 3G mobile A/V surveillance
  • Multi profile streaming
  • 520TVL resolution

 

Product# VDIP-2L316 2 Megapixel Infrared IP Network Dome Camera

This camera is basically the same as the first camera listed above with one exception.  This camera is capable of producing images at a full resolution of 1,600 x 1,200 pixels, also known as UXGA.

  • Dual CODEC (H.264 and MJPEG)
  • Digital PTZ
  • Poe
  • Two-way audio communication
  • 3G mobile A/V surveillance
  • Multi profile streaming
  • 2 Megapixel resolution

 

Product# VVIP-2L316  2 Megapixel Infrared Vandal Resistant IP Network Dome Camera

This camera is basically the same as the one above that is listed just before this entry (Product# VDIP-2L316) with the major difference being that this camera is constructed in a special design to make it vandal resistant.

  • Dual CODEC (H.264 and MJPEG)
  • Digital PTZ
  • Poe
  • Two-way audio communication
  • 3G mobile A/V surveillance
  • Multi profile streaming
  • 2 megapixel resolution

If you have any additional questions about a Network PTZ Dome Surveillance Camera that have not been answered by this article or the Web pages that these cameras are on, contact one of our security specialists today.   There are two ways to contact them, on-line Live Chat or by telephone at 866-573-8878 Monday through Friday from 9AM to 6PM EST.

 

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PTZ-TOOL Programming Module

Written By:
Thursday, April 14th, 2011

The PTZ-TOOL programming module makes programming PTZ cameras a cinch.  Security Camera King offers this for sale for customers because there are many people that have more than 1 PTZ (Pan-Tilt-Zoom) camera in their system.  In fact, this tool is only required if you use more than 1 PTZ camera in your system, but it can be used to control a standalone PTZ camera as well.

PTZ cameras make for a powerful addition to a digital video security system.  Often times, these cameras can take the place of two or more stationary cameras making them very cost effective as well.  These cameras usually come with factory pre-settings and it may be useful to “tweak” them a bit; that’s where the PTZ-TOOL programming module comes in.

Before we talk about the PTZ-TOOL programming module itself, let’s take a look at what makes up a digital video system and exactly what a PTZ camera can do in that system.

A basic digital video security and surveillance system normally consists of three components; one or more digital video cameras, a Digital Video Recorder or DVR, and one or more monitors (a monitor is needed for the initial setup of the system, but once the system is up and running a monitor is actually an optional choice).

The cameras’ primary function is to “capture” video images created by light that reflects off objects in the cameras’ field of view.  The lens focuses this light onto a small sensor that ranges in size from 1/4″ up to about 1/2″ square.  When light strikes its individual units (pixels for example) the sensor produces an electrical impulse that can be measured.  These electrical impulses are used to create a video image that can be displayed on an electronic monitor and/or compiled into a file that can be stored on the DVR’s hard disk drive.

There are many different ways to increase or decrease the field of view for the camera.  One way is to use a varifocal lens.  These lenses however are often only manually operated and can only enlarge or reduce the field of view.  Another way to increase security coverage is to use more than one camera in such a manner that their fields of view overlap just a little.

The third way to increase coverage is to use a PTZ camera. A PTZ camera can normally pan 360 degrees or a full circle and have a vertical movement of at least 180 degrees.  In other words, picture an object that looks like a sphere cut in-half.  Now imagine the camera lens in that half-sphere; generally this is the area that the camera lens can move/rotate through in order to capture video images.

PTZ cameras have become very popular, due to their extreme versatility and advanced electronically controlled features.  However, there are so many different features and functions that it may seem somewhat overwhelming to the do-it-yourselfer.  The PTZ-TOOL Programming Module helps to make the task of changing PTZ settings easy.

 

The PTZ-TOOL Programming Module is designed for use with Security Camera King’s PTZ-LX550L3X Pan/Tilt/Zoom Camera and our PT-LX540 Pan/Tilt Camera.  If you use more than one PTZ-LX550L3X or PT-LX540 Pan/Tilt Camera you will need the PTZ-TOOL programming module.  One of the reasons that this tool is required when using more than one PTZ or PT camera is so the address of the camera can be changed from the setting of “1.”

The DVR has virtual “ports” that are assigned to the cameras to keep them separate for the DVR’s sake.  These virtual ports or addresses can range from 0-255.  Programming the camera to a different address allows the DVR or other device to control that camera only.  It’s the equivalent of a first name when talking about someone in a particular family.  If you used the surname only, no one would know who you were talking to; mother, father or siblings.  However, when you use a first name, then the individual knows exactly who you are talking to (addressing).

With the Programming Module for PTZ-LX550L3X and PT-LX540, you can assign different addresses (first names) to the cameras so that the DVR can keep track of them.

If you have any additional questions about the Programming Module for PTZ-LX550L3X and PT-LX540 contact one of our security experts today either by on-line “Live Chat” or by telephone at 1-866-573-8878  Monday through Friday from 9AM to 6PM EST.

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