Posts Tagged ‘ security camera system’

Wireless Spy Camera

Written By:
Wednesday, November 17th, 2010

There are times when covert digital video monitoring is needed and nothing can fulfill your security and surveillance needs like wireless spy cameras from Security Camera King. We offer a full line of wireless spy cameras that maintain their concealed identity, transmit their video images without the need for wire hook-ups, and produce high resolution digital video.

Digital video security and surveillance monitoring can be classified into two different types based on whether the monitoring is obvious or purposely intended to be concealed. In the security video industry, these two categories are often referred to as covert (meaning hidden, stealthy, or concealed) and overt (meaning obvious, open, or unconcealed). Covert cameras that broadcast their digital video using radio signals are often referred to as wireless spy cameras.

Wireless spy cameras can be classified into two different types as well based on how the camera achieves being overt. Wireless spy cameras do this by either being incredibly small or disguised as some other object other than a security camera (or some cameras may use a combination of both). The incredibly small types of cameras are often referred to as pinhole type cameras and these are often designed to be disguised as very small objects as well. In order to understand how this is possible, let’s take a look at an incredibly small wireless spy camera and see how it works.

Digital video cameras work by focusing light images on a sensor that can transfer the light energy of the image into electrical energy. There are two different sensors that may be used for this purpose; a Charged Coupled Device or CCD or a Complimentary Metal Oxide Semiconductor or CMOS.

Each sensor performs the same task (transfers light energy into electrical energy that can be measured) but goes about it in a slightly different way. Typically, CCDs have provided a higher quality picture while CMOSs use much less electricity to operate. However, as electronic technology advances both are producing high resolution video images with a minimal amount of power needed to do the job.

These sensor chips, usually in the shape of a square, can be very small, as small as only 1/4″. Today’s electronic technology can produce incredibly small Integrated Circuit or IC chips that house the circuitry for processing video images, converting them to radio signals, and transmitting them to a receiver. Advanced lens physics and manufacture can produce a small wide-angle lens as small as 3.7 mm for example. Combine all three of these technologies and you could produce a wireless spy camera as small as the head of a screw or a button that produce high quality video images. In fact, Security Camera King carries two such cameras, our 2.4 GHz wireless button camera and our 2.4 GHz wireless screw camera.

Wireless spy cameras labeled as “2.4 GHz” refer to the technology that is used to transmit the wireless signal. A 2.4 GHz wireless spy camera uses the same high-quality dependable technology to transmit its radio signals as many land line based wireless telephones. The transmitter and receiver are tuned to a frequency in the 2.4 GHz radio wave spectrum.

The term “wireless spy camera” may impart a connotation of negativity associated with its name. It’s important to note that wireless spy cameras are not necessarily used for this purpose but may be used for the sake of aesthetics in appearance. Our 2.4 GHz Wireless Dog Baby Monitor Camera is a fine example.

Some wireless spy cameras may be used as standalone monitor systems. That is, the camera/transmitter unit comes with its own receiver/monitor. These units are usually designed for monitoring and not recording so although they may come with their own portable, handheld LCD monitor, they often do not record. Our wireless dog baby monitor camera is a good example of this; typically it is not necessary to record baby monitor transmissions.

Other cameras may be designed to use with a standalone video security system that includes a DVR   for storing video. These cameras may or may not come with a receiver, so it’s important that you check on this in the camera’s description or specifications area.

Sometimes the greatest advantage of using digital video security cameras is the ability to monitor and record activities without any indication that video monitoring is occurring and Security Camera Kings wireless spy cameras do just that. Check out our vast selection by clicking on “Security Cameras” then “Wireless Hidden Cameras” on the left side of our web page.


Security Camera System for Courthouse

Written By:
Thursday, November 4th, 2010

A security camera system for courthouse use can augment other security systems such as metal detectors, guards, and bailiffs. While we tend to think of courthouses as extremely safe and secure facilities, they do have the potential for violent outbreaks. Further, if such a situation should occur, nothing can provide better documentation of the event than a digital video security camera system.

Is it really necessary to have a security camera system for a courthouse? Absolutely; while most courthouses have armed guards and metal detectors for protection, a digital video security camera system can also help deter violence, document criminal events, and protect courthouse employees.

In addition, most courthouse security measures focus on the interior of the courthouse. A digital video security camera system for courthouse use can provide not only interior coverage but just as important, exterior coverage where undesirable events may first begin.

Another advantage of a security camera system for courthouse use is the deterrence of violence and vandalism. It’s a proven fact that digital video security cameras do deter criminal activity. The statistics to support this fact have been shown in both New York City and London, England where police agencies use video security surveillance to monitor day to day street activities. Potential vandals or other criminal perpetrators are less likely to follow through on illegal acts if the know they are being watched and recorded by video cameras.

The occurrence of an unlawful act even in a courthouse requires proper evidence. Nothing can provide documentation for proof and evidence better than a digital video security camera system. A security camera system for courthouse use includes a Digital Video Recorder or DVR. Video images are converted into digital video files and saved on the DVR for later use if necessary. DVRs with CD/DVD writers or thumb drive writers can even provide multiple copies of video footage for distribution to law enforcement agencies, prosecuting attorneys, and other courthouse personnel.

Needless to say, working in a courthouse can be extremely stressful. Since there are always two opposing sides to every issue, there’s bound to be unhappy, tense, and impatient people that must interact with other courthouse employees. Unfortunately, there are isolated incidences where these emotions run rampant resulting in outbursts against courthouse employees. A security camera system for courthouse use can not only spot incidents when they begin and document them as they occur, but help deter them from occurring in the onset.

Another benefit of digital video security camera systems is remote control and monitoring of the system. Thanks to advancements in computer and electronic technology, a security camera system for courthouse use can be remote controlled from just about any other off-site location that has a broadband Internet connection. Authorized users can monitor and record Internet Protocol (IP) ready cameras in a totally different physical location than the system. This feature can be particularly beneficial in the unfortunate event of bomb threats, taking of hostages, and other acts.

The use of Pan-Tilt-Zoom (PTZ) cameras, especially in courthouse parking lots, can provide an early warning of an event before it reaches the inside of the building. Furthermore, DVRs with object tracking can detect motion and automatically pan, tilt, or zoom the camera to track or follow a vehicle or individual.

Maintaining the ultimate security of a courthouse is tantamount to maintaining justice. The very nature of the events that occur within a courthouse and the fact that individuals suspected of murder, manslaughter, and other violent crimes are brought to a courthouse for trial indicates the necessity for proven security measures.

A properly designed and installed security camera system for courthouse use will provide images of all individuals that enter and exit the building. Public areas within the courthouse can be monitored by video security cameras, freeing courthouse guards to provide their services where they are needed the most.

Security Camera King has some of the most sophisticated electronic digital video security camera systems available. If you are the responsible party for procuring a security camera system for courthouse use, contact one of our security experts today. Our trained security experts can help you with a needs assessment to determine the equipment needed to get the job done right.

Contact us by clicking on the “Live Chat” button at the top of the pare or by telephone at 866-573-8878 Monday through Friday from 9AM to 6 PM EST.


Outdoor Motion Activated Security Surveillance System

Written By:
Thursday, November 4th, 2010

An outdoor motion activated security surveillance system is an excellent tool to provide security and surveillance for almost any residential or commercial application. Modern technological advancements have made this surveillance system incredibly versatile and reasonable priced as well.

An outdoor motion activated security surveillance system’s cameras are specifically designed for outdoor use. These cameras (as opposed to indoor cameras for example) are designed to be housed by a protective enclosure. The enclosure protects the camera from weather, dust, and other objects.

An outdoor security camera may be rated according to the protection that is afforded to it by the enclosure or its casing. This rating, an Electrotechnical International Commission (EIC) standard, is call an Ingress Protection rating, IP rating, or IP code.

The rating consists of the letters “IP” followed by two digits, for example IP65. The first digit of the rating describes the extent the camera is protected from solid objects and the second digit indicates the extent the camera is protected from liquids. The example IP65 rating means the camera is dust free and protected from water sprayed from nozzles in any direction.

The first digit of an IP rating for an outdoor motion activated security camera system ranges from 0 – 6 with 0 indicating that there is no protection against contact or ingress of objects. As the number increases from 0 to 6, the rating indicates that the camera is protected from objects continually smaller in size. A first digit IP rating of 6 indicates no dust and complete protection against contact.

The second digit of an IP rating for the camera ranges from 0 to 8 with 0 indicating that there is no protection from water. As this digit increases in value the rating indicates progressive protection from water with 1 meaning protection from dripping water and 8 meaning continuous immersion in water.

An outdoor motion activated security camera system also has a unique characteristic as indicated by its descriptive name. The cameras only record video when motion is detected.

This is accomplished by an on-board Passive InfraRed (PIR) sensor. The PIR sensor can detect the infrared radiation from objects in the camera’s field of view. If the sensor detects a significant change in the infrared radiation in this view, it assumes it is created by a moving object; hence it detects “motion.” The sensor is connected to a relay that turns the camera on in recording mode to capture the video images. The camera shuts off or stops recording when the sensor detects that the motion has stopped or after a pre-programmed period of time.

This feature, though small and simple in design and appearance, can offer tremendous benefits in the functioning of a security camera system. Since the camera will only record video when motion is detected, this can save a tremendous amount of file space use on the system’s Digital Video Recorder or DVR.

Since the DVR records video images in sequence, it will continue recording until the DVR’s storage capacity is full. Once the DVR is full however, the video image files are rewritten over the files that are the oldest, continuing this process until the DVR is full and then repeating the process over and over again. A motion detector activated camera can extend DVR recording times before repeating and rewriting, significantly.

In addition, a motion activated security camera system camera must have a power supply. This may be in the form of a small, low-voltage Direct Current (DC) power line run from a power distribution center to each camera or from a nearby plug-in transformer. Many cameras have the ability to operate on the power supplied by batteries, either one time use types or rechargeable types.

The PIR sensor on a motion activated security camera uses a very small amount of power to stay on. In fact, compared to the power required to capture video, the PIR sensor’s power usage is significantly lower. Motion activated cameras that operate on battery power last significantly longer between charges or battery changing because the motion sensor, in effect, conserves battery power.

There are many additional/optional features that contribute to the versatility of an outdoor motion activated security camera system. Some of these features include:
• Pan-Tilt-Zoom (PTZ) functions
• Day/Night vision
• Night vision infrared recording
• Wireless cameras
• IP ready cameras and/or DVRs

These features coupled with the motion activated feature make the outdoor motion activated security camera system appropriate for almost any commercial or residential application.


DVR and Security Camera Systems

Written By:
Monday, September 27th, 2010

What is the relationship between a DVR and security camera systems? Is DVR necessary in a security camera system? What kinds of DVRs are there? Are there substitutes for DVRs? What is a DVR anyway?
Let’s examine a basic digital video security camera system and how it operates. Afterwards, we’ll be able to answer some of the specific questions related to the DVR and security camera systems.

A basic digital video security camera system is a component system that consists of three major components:
1) One to many cameras;
2) A DVR or Digital Video Recorder; and,
3) A monitor or monitors

The system operates in the following manner. The digital video camera converts light energy into electrical energy which can be measured and is used to create digital video data. This data is sent to the DVR. As previously mentioned, the DVR is a digital video recorder, just like the hard disk drive or HDD of a personal computer. However, in security camera systems, the DVR normally contains a processor, just like the processor in a Personal Computer or PC.

However, the processor in a DVR is a highly specialized piece of electronic circuitry. Unlike the PC processor, the security camera DVR processor is manufactured to handle specific functions of security camera systems such as digital video file production, camera control, and recording of digital video files. It uses a specific utility called a COmpression/DECompression or CODEC program to process the digital video file from the digital video data sent to it by the video camera.

Digital video is basically nothing more than a series of rapid digital photographs taken in rapid succession. Typically, high quality digital video is about 30 digital photographs taken within on second, also referred to as 30 frames per second or 30 fps. When you think of the file size from just one high quality digital photograph, you can imagine how enormous a digital video file that takes 30 fps for 24 hours could be.

That’s why the DVR’s processor uses a CODEC to create the digital video file. It uses special programming that shrinks the size of the file without sacrificing the high quality of the image. CODECS change from time to time as different approaches and technologies make each CODEC better and more efficient. One of the most popular and recent CODECs is called the H.264 CODEC.

The DVR and security camera system create, process, and store digital video files that can be viewed instantly (live) on monitors or stored for later viewing on monitors or for archiving. Many DVRs also have additional storage options such as CD/DVD writers or USB Flash drive connectivity to copy portions of video to portable media. This may be necessary to give insurance companies, police departments, as evidence, etc.

The DVR may also contain other specialized features. One common feature of many modern DVRs is internet connectivity. The DVR may contain its own web server technology and programming so that it may be connected to any broadband internet service and instantly become accessible anywhere in the world there is broadband internet accessibility.

Most DVR and security camera systems come in 4, 8, or 16 channels. This means that the DVR can handle 4, 8, or 16 separate camera inputs at one time. Security systems requiring more than 16 cameras simply use additional DVRs to expand the number of cameras needed.

Highly specialized security cameras may have highly specialized DVRs. Portable systems, systems that are used for a small amount of time, systems that have self contained cameras and DVRs all in one unit may utilize different digital storage methods for the DVR. For example school bus DVR and security camera systems often use a Compact Flash Card or similar portable storage medium instead of a full sized hard disk drive as the DVR.

Is a DVR necessary in a security camera system? No, not necessarily, but a system with just a monitor and no DVR will not be able to record the video so that it may be reproduced for later use. A baby monitor is usually a good example of this. On the other hand, a retail store facility would not realize the full potential of protection without a DVR and security camera system.

Other DVR and security camera systems functions pertaining to the DVR may include audio recording, various output display resolutions as well as connectors, remote control, e-mail and smartphone notification, and mouse and/or keyboard control.


What is a Good Security Camera System?

Written By:
Tuesday, September 14th, 2010

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

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

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

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

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

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

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

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

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

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