Posts Tagged ‘ digital video security camera’



Zoom CCTV

Written By:
Thursday, June 30th, 2011

One of the most popular digital video security system features is the zoom CCTV or Closed Circuit TeleVision.  There are many different types of Zoom CCTV cameras designed for a multitude of uses; be sure when shopping for one that you get the features you need.

What is a “zoom CCTV” anyway?   It’s a digital video security camera used in CCTV that can vary its lenses focal length enough to enlarge objects farther away from the camera and make them appear closer (enlarged) and with more detail.  These lenses are often referred to as varifocal.

Most box cameras that do not have built in lenses so they have the advantage of using Zoom CCTV lenses only.  These can be manual lenses where they are basically positioned through trial and error by hand or they can be remotely controlled as well.

There are also some cameras that do have on-board lenses that zoom only and these are often found among the bullet type and dome type cameras.  When we say “Zoom” only, we are referring to just the zoom function, as compared to a Pan-Tilt-Zoom or PTZ camera which has additional features including the ability to move horizontally or vertically.

Security Camera King has a wide selection of digital video cameras including cameras that can zoom.  Examples of varifocal lens “zoomable” bullet cameras that they offer include:

Security Camera King also has plenty of dome cameras with zoom capability.  General these lenses are “fixed” to the camera and cannot be changed.  This type of lens is often called a “board lens.”  They may also offer digital zoom as well.  Here’s a partial list of their Indoor Dome Cameras:

Security Camera King has plenty of outdoor zoom CCTV cameras also.  Once again, here is a partial list of their “Vandal Resistant” dome cameras that have zoom capability:

We’ll save listing the PTZ cameras when we write about them but of course, if it says it’s a PTZ camera, than it must have a zoom lens.

If you have any additional questions about zoom cameras and whether your situation calls for one or not, please contact one of security experts.   You may contact them via on-line “Live Chat” or by telephone at 866-573-8878.

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BNC-100 CCTV Video and Power Cable

Written By:
Friday, April 8th, 2011

The BNC-100 CCTV Video and Power Cable is one item offered by Security Camera King (SCK) that combines two functions into one unit.  This cable provides the means for both video transmission from the digital video security camera to the Digital Video Recorder or DVR and the power supply from the power distribution box or plug-in transformer to the camera.

Video transmission signals are a special type of radio frequency signal.  These signals can be transported in many different ways.  For example, digital video cameras can send the video transmissions wirelessly using on-board transmitters and antennas to corresponding wireless receivers.  The other option involves using wires or cable.

There are many different types of wiring or cable that can be used as video transmission cable for digital video security cameras.  CAT5 Ethernet Twisted pair cable, for example, can be used to send video transmission signals depending on the strength of the signal and the length of the cable run.

The most popular type of cable however, is RG-59 Coaxial Cable.  This cable is advantageous for several reasons.  First it provides a prefect medium for which the signal can travel without excessive degradation of the signal.  Secondly, it is sheathed to prevent interference to the signal.  BNC-100 CCTV Video and Power Cable is RG-59 coaxial cable.

Our BNC-100 CCTV Video and Power cable is pre-cut to a length of exactly 100 feet.  Each end of the cable has a pre-installed female BNC type connector for connecting the camera end and the DVR end of the cable.  There is no need to mess with cutting or stripping wire and twisting or crimping connectors since that is already done for you.

In addition, our BNC-100 CCTV Video and Power Cable also contains a one pair (two wire) DC power supply cable.   This cable is terminated on each end with one male and one female PT-3 2.5mm power plug for easy connection to the camera and the power supply.

This video transmission cable is also shielded to prevent interference from the proximity tot he power cable and from any outside sources.  The impedance of the BNC-100 CCTV Video and Power Cable video transmission cable is 75 ohms.

The “BNC” in BNC-100 CCTV Video and Power cable doesn’t refer to the cable as much as it does the connector type.  In fact, most cable used with BNC fittings is RG-59 coaxial cable (and not BNC cable).

The BNC is a radio frequency connector that is commonly used with coaxial cable for television, radio, and other radio-frequency related type equipment.  BNC is an acronym that is used when referring to these special connectors.  In fact, the “B” in BNC-100 CCTV Video and Power cable stands for bayonet mount, the actual locking mechanism used by these connectors.  When to connectors (a male and a female type) are joined together, they are pushed into one another and twisted by their “collar” to lock them together.  Just like the way a bayonet is mounted on a rifle.

 

The remaining two letters of BNC stand for its inventors, Paul Neill and Carl Councelman.  One must agree that BNC is a much easier way of referring to the connector than by saying “Bayonet, Neill, and Councelman” connector.

 

If you have any further questions about the BNC-100 CCTV Video and power cable or BNC connectors or would like to purchase the cable please contact one of our security experts either by on-line “Live Chat” or by telephone at 866-573-8878 Monday through Friday from 9AM to 6PM EST.

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Security Equipment

Written By:
Monday, March 21st, 2011

Security Camera King offers a wide variety of security equipment for most of your security needs.  Our merchandise must meet tough quality control standards and be of the highest quality nd workmanship to be considered for our on-line catalog at http://www.security camera king.com/.  In most cases we offer same day shipping and 1 to 2 day shipping on other limited items.

Security Camera King’s full range of security equipment as well as surveillance and monitoring equipment includes:

  • Digital video security camera systems;
  • Individual Digital Video Recorders or DVRs;
  • Digital video security cameras;
  • Individual security Network Video Recorders or NVRs;
  • Digital video security camera lens, special purpose mounts, cables, connectors, tools, and other accessories;
  • DVR lockboxes;
  • Security camera monitors;
  • Mobile video servers;
  • Counter surveillance items;
  • Personal protection items; and,
  • Audio recording devices.

In addition to our complete line offering of security equipment, we also feature complete security camera systems for 4, 8, 16, and 32 channel requirements.  These systems are complete packages minus the monitor that save you money by bundling and get you up and running right away.  (We don’t include the monitors in our system packages because of each individual’s different preferences and many of our customers already have functional monitors that they can use.  This also saves you more money.)

Our bundled digital video security equipment packages come with the appropriate number of high quality digital video indoor/outdoor day/night vision infrared cameras, all the necessary cables and connectors, the proper DVRs, and a power supply for the cameras.  Our bundled packages as well as our line of individual Digital Video Recorders include the Elite-Mini, the Elite Series, and the Ultimate Series units.

These DVRs offer the highest quality and greatest number of standard features of any DVR in the industry and is a “must-have” as part of your security equipment.  The following is partial list of just some of the features that our customer feedback has indicated is favored the most:

  • High Definition, high quality video play back;
  • Internet ready–your system can be viewed and controlled by any computer located anywhere in the world there is Internet access;
  • Smartphone control–you system can also be monitored and controlled using one of several smartphones and our free downloadable apps.; and,
  • H.264 compression utility that saves on storage space while maintaining high video quality.

 

Security equipment isn’t very valuable if you don’t know how to operate it properly.  That’s whey Security Camera King provides 100% complete support on all of the digital video system security equipment it sells.  Our support doesn’t consist of just telling you where to turn the DVR unit on.  We offer full support from the point BEFORE you purchase your system, including total system design, to the final phase of using your installed and completely set up system.  We’ll help you with planning, installation, set-up, and use.

Security Camera King offers a complete support center that includes our CCTV Learning Center with calculators, security articles, security videos, knowledge base and even our video vault.  But if these still don’t answer your questions or solve your problems we also over on-line “Live Chat” support and telephone support with one of our trained security equipment experts.

As mentioned above, in addition to our digital video security line of products we offer many other types of security equipment as well including personal protection.  The following is a list of the major items we offer for your personal protection:

  • Airsoft guns;
  • Animal repellent (pepper and/or mace as well as ultrasonic devices);
  • Car safety items;
  • Diversion safes;
  • Folding knives;
  • Handcuffs;
  • Instructional Fighting DVDs;
  • Mace pepper sprays;
  • Metal detectors;
  • Safety lights;
  • Stun guns; and,
  • Tasers.

 

We also offer various types of home protection such as:

  • Slideaway alarms;
  • Glass breakage alarms;
  • Door guard and door stop alarms;
  • HomeSafe security equipment system;
  • Voice alerts; and,
  • Pool alarms.

So although our company name is Security Camera King rest assured that we specialize in all sorts of security equipment, not only digital video cameras.

If you are interested in purchasing any of our security equipment or you simply have a question or need support please contact one of our security experts on-line using “Live Chat” or by telephone at 866-573-8878 Monday through Friday from 9AM to 6 PM EST.

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Battery Powered Surveillance Cameras

Written By:
Wednesday, December 8th, 2010

There are several advantages to using battery powered surveillance cameras. There are just about as many types of battery powered surveillance cameras too. Thanks to recent discoveries and improvements in electronic circuitry, battery powered surveillance cameras are not only possible, but the run longer and can be ever smaller in size.

Before we talk about battery powered surveillance cameras and their power systems, let’s briefly describe how a digital video security camera works. The digital video security camera is one of three major components in a digital video security system, the other two being a Digital Video Recorder or DVR and a monitor.

A digital video camera works by converting light energy into electrical energy that can be measured. The camera uses to different instruments to do this, a lens configuration and an electronic sensor chip. The lens or lenses focus the reflective light of images in the field of view of the camera. They focus this field of view, with very accurate precision, onto a sensor chip that typically ranges from 1/4 to about 1 inch in size.

There are two different sensor chips in use today. Both accomplish the same objective, but each goes about doing it in a different way. Charged Coupled Devices or CCDs and Complimentary Metal Oxide Semiconductors or CMOSs, are sensitive to light. When the focused image strikes the CCD or CMOS, they excite electrons in the sensor material which produce a slight electrical impulse that can be measured. These impulses create digital video images.

Initially, these sensors were extremely expensive. However, in recent times their cost has dropped considerably and so has their size. Typical CCDs and CMOSs used in non-specialty digital video security cameras are 1/4, 1/3, and 1/2 inches in size. Also, because of how they convert the light into electrical energy, CCDs have typically created a higher quality image than CMOSs but they do so at the cost of using more electricity. However, as time passes innovations in the sensor chip manufacturing and design have created lower power-consuming CCDs and higher quality CMOSs that already use less power.

Most non battery powered surveillance cameras get their power from a low voltage Direct Current (DC) power supply wire. This is usually run from a power distribution center (that powers all the other cameras in the system as well) or from a plug-in outlet transformer. The electrical power provides the circuitry for creating the digital video images as well as any additional functions of the camera (such as Pan-Tilt-Zoom (PTZ) for example.

These cameras require extra effort during installation, because not only does the camera require a coaxial cable run, but the power supply wire will need to be run also. This may entail drilling through walls, ceilings, studs, etc. Sometimes cameras may be needed in places where it is difficult to run any wires. This is when wireless battery powered surveillance cameras come in.

Battery powered surveillance cameras normally operate off of power from a rechargeable battery or even a one-time use battery. Rechargeable batteries may be nickel cadmium (NiCads), nickel metal halide (NiMH), or lithium ion (LiPO) types. NiCads are typically the cheapest of the three will LiPOs have a much greater working efficiency, lasting longer per charge and not exhibiting an annoying side effect of NiCads called battery memory which reduces lifetimes between charges.

In addition, there are extremely small disguised or hidden type battery powered surveillance cameras such as ink pens (see Security Camera Kings product # HC-PEN) and wristwatches (see our product # HC-WATCH) that operate off of very small on-board rechargeable batteries or watch type batteries.

Credit should also be given to the computer memory industry. Their innovations in cramming more and more memory in tinier electronic spaces and using less electricity to do so have made not only battery powered surveillance cameras possible, but entire battery powered surveillance systems as well. These systems (usually consist of a camera and DVR that can download its stored video to a computer for playback and editing) can be built into almost any object. Some examples that Security Camera King offers for sale in addition to the two already mentioned include a portable lighter (product # HC-LIGTR-DVR), a mini desk clock (product # HC-CLOCK-DVR), and sunglasses (product # HC-SUNGL-DVR). We even have a portable car key fob (product # HC-CARKY).

As technology continues to increase, battery powered surveillance cameras will more than likely be the wave of the future.

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Surveillance Spy Cameras

Written By:
Wednesday, December 1st, 2010

If you need to keep an eye on someone without them getting an eye on you try using surveillance spy cameras. Actually, these cameras not only allow you to keep an eye on someone but also something like a pet, a house, a boat or some other type of property.

What exactly is a surveillance spy camera? Typically, a surveillance spy camera is a special type of digital video security and surveillance camera.

A digital video security camera usually has one of three different shapes. Box cameras look like rectangular box shapes and are typically mounted on walls, posts, and other areas. Bullet cameras resemble box cameras but have rounded ends, hence the name “bullet.” Dome cameras are normally flush mounted on a ceiling or wall and have a small protective bubble or dome that covers the camera. The presence of these cameras is somewhat obvious and their usually is no attempt to hide or disguise them.

Surveillance spy cameras on the other hand are digital video cameras that are much smaller, so small in fact that they are often hidden or disguised as other objects. They may contain their own Digital Video Recorder or DVR and power supply and be an entire standalone system, or they may require an external power supply and be incorporated into an entire digital video security system that has both hidden and visible cameras, a standalone DVR with a Digital Signal Processor or DSP, and a monitor.

How can surveillance spy cameras be so small? Let’s look at how a full-size digital video security camera works then will look take a look at a surveillance spy camera. Digital video cameras have three main components within the camera; the lens, a sensor chip, and the electronic circuitry used to operate the sensor chip and convert its information into digital data (a series of 1s and 0s).

The lens is a highly machined mechanically functioning glass (or plastic) that focuses the cameras field of view onto the sensor chip. Generally, the higher quality and type of lens, the higher quality of the video produced. Lenses determine how far, how wide, and how detailed the target area will appear.

There are two types of sensor chips, a Charged Coupled Device or CCD and a Complimentary Metal Oxide Semiconductor or CMOS. These two chips work a little differently but accomplish the same objective, transferring light energy into electrical energy. These chips are usually square or at least rectangular in shape and usually range from 1/4 inch to 1 inch in size.

Electronic circuitry is used to interpret the chip, read its information, and convert it from an analog signal into digital data. The electronic circuitry may also provide other functions such as audio recording and movement of different camera parts.

Surveillance spy cameras contain the same components but the components are designed to be very, very small while still performing the needed task. For example, most of these cameras are extremely small. Their lens is not a full size variable lens but is a very small wide angle lens instead. This eliminates the need for a large lens attachment.

Secondly, surveillance spy cameras usually use one of two sizes for their CCDs or CMOSs, 1/4 inch or 1/3 inch. The incredibly small sizes of these sensor chips allows them to be used (hidden or disguised) in very small objects such as ink pens (see Security Camera King’s product # HC-PEN for example) or wristwatches (see our product # HC-Watch).

Finally, with the latest improvements in Integrated Circuit (IC) chip technology, incredibly complex circuits can be made in circuit chips that are only 1/4 inch in size also. For example, the electronic circuitry needed to activate and read the sensor, convert the information into digital data, and transmit it wirelessly to a corresponding receiver can be fit with a IC chip less than an inch in size.

In addition, surveillance spy cameras can also have their own miniature DVR in the form of a small memory chip. As computer memory technology advances, these chips become smaller yet hold more data. The data on the memory chip can be downloaded to a personal computer using a USB cord.

Security Camera King has a very wide assortment of surveillance spy cameras available for purchase. These cameras come in all sizes and types (view the products individually on-line by clicking on the left hand side of the page “Security Cameras” then “Hidden Security Cameras” or “Wireless Hidden Cameras” or “Hidden Camera Systems.”

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