Posts Tagged ‘ DVR systems’



Remote CCTV System

Written By:
Friday, May 6th, 2011

There was a time in the not-so-distant pass where a remote CCTV (Closed Circuit TeleVision) system would be unheard of.  Today, thanks to the leaps and bounds of electronic technology, all of Security Camera King’s featured packaged systems include remote control of the system as a standard feature.

Security Camera King offers several different complete system packages and very competitive prices.  These systems are based on the number of cameras and the type of Digital Video Recorder or DVR.  We offer 4, 8, 16, and 32 channel systems that should appropriately fit just about any application.

In addition, we offer 4 different DVRs.  Each DVR has slightly different features (usually on the plus side) that make them suitable for your specific situation.  We offer the Elite Mini Economy, the Elite Mini HD, the Elite Series, and the Ultimate Series DVR systems.  Each one of these systems can be a remote CCTV system.

Before we go any further, let’s create a definition for remote CCTV systems so we know just exactly what we are talking about.  Each one of the DVR systems previously mentioned above come with an InfraRed or IR remote control that can be used to operate the DVR.  By strict definition of remote, each one of these systems qualify as a remote CCTV system.  However, this is not what we are talking about, in this article at least, when we say remote CCTV system.

Our definition of a remote CCTV system is one that can be easily controlled by an individual who is no where near the system.  Here is a good example:

You’re vacationing in Rome and are standing in line waiting to enter the Sistine Chapel, when you suddenly get the feeling you should check back with home because of the escalated rates of vandalism that have been occurring in your neighborhood lately.

So you get out your iPhone and start the application for your digital video system and while you’re standing in line you view each one of your cameras.  In addition, one is a Pan-Tilt-Zoom (PTZ) camera that covers your entire driveway.  You can control this camera right where you are to get a good view of your entire home and drive way after manipulating the PTZ by just using your iPhone.  You find that everything looks ok, and you have a better peace of mind feeling, just before you are ushered into the chapel to view the beautiful art work.

To some, this may sound a little like science fiction but it’s not.  Furthermore, it’s very easy to achieve with this remote CCTV system.  No matter where you are located, as long as you can connect to broadband internet through your 3G or 4G telephone you’ll always have remote control access.

In fact, you don’t have to have a smartphone to operate your CCTV system remotely.  You can even use a personal computer or Mac with a Web browser to access your system remotely and it only takes a couple of minutes to set up the system to do so.

How is this possible?  First, all of our DVRs run on an embedded Linux operating system.  This also includes the technology for an embedded Web server.  Just connect the DVR to a broadband internet perform a little set up work and you’re ready to “Go Remote.”  For those that are techno-savvy, our DVRs also have Dynamic DNS support, another indication of the versatility of these systems.  Since it is not necessary to have a Static DNS this saves you money (normally, Internet Service Providers can provide you with a Static DNS but will do so for an additional monthly fee).

Another function of our DVRs that contribute to the remote CCTV system is email capability.  Instead of checking your system all the time when you are on the road, you can have your system send you an email based on your own criteria.  You can then use your smartphone to access y our system and “see what’s up.”

As you can see, remote CCTV systems are no longer science fiction and are a very dynamic feature for your digital video security and surveillance system.

If you have any additional questions about remote CCTV systems, please feel free to contact one of our security experts.  They can be reached on-line through the “Live Chat” feature or by telephone at 866-573-8878 Monday through Friday from 9AM to 6PM EST.

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Geovision DVR Security Camera

Written By:
Wednesday, July 28th, 2010

What is a GeoVision DVR Security camera? GeoVision is a manufacturer of Internet Protocol or IP security cameras. A DVR or Digital Video Recorder is a device similar to the hard disk drive on a personal computer, in this case used to store digital video files. A GeoVision DVR security camera is an IP digital video security camera that can either be connected to a personal computer using either a GeoVision DVR PC card or via the internet. Perhaps a little background information and a closer look at GeoVision products will help to describe this concept in detail.

GeoVision Inc. is an international security camera and accessories based company that was established in February 1998. It has subsidiaries in Japan, China, Brazil, the Czech Republic, and the United States. GeoVision sells GV-Series security camera system products such as DVR systems, IP cameras, video servers, compact standalone DVRs, PC-based DVR cards, and other accessories.

All of GeoVision’s current security camera products are IP ready security cameras. An IP ready security camera can be connected and networked via the internet and often uses a personal computer to replace the monitor and DVR that would be used in standalone DVR systems. These cameras’ physical connections are made usually with a CAT 5 type (or Ethernet) cable. The cameras have their own built-in servers and can communicate with a personal computer by either using proprietary software or simply using web browsers like Internet Explorer.

GeoVision DVR Security Cameras are personal computer based systems. The DVR portion of the system is a proprietary GeoVision PCI type card that is installed on a personal computer. GeoVision manufactures several different types of PCI DVR cards. The latest versions of these cards include the GV-DVR V8.3 and the GV-DVR V8.3 Hybrid. The GV-DVR V8.3 is designed for use with a variety of different manufacturers’ digital video cameras. The GV-DVR V8.3 Hybrid is designed for use with a variety of different manufacturer’s cameras as well, but can merge the use of digital video cameras with support for legacy analog cameras also.

A GeoVision DVR security camera system utilizes a personal computer as the DVR “system.” For typical standalone digital video DVR camera systems, the components of the system consist of the cameras, a processor/DVR with a compression utility, and a monitor. The digital video camera sends a video transmission signal to the processor with analyzes it and creates a digital video file from it.

Digital video is created by taking several digital photos in a very short time (on average, 30 photographs called “frames” per second). The data from these files will get incredibly large in a very short period of time. Incredibly large digital video files consume large amounts of digital storage space quickly, are hard to manage, and can slow down even the fastest processors. For this reason a COmpression/DECompression or CODEC utility is used by the processor. This utility which may be in the form of a software program or an integrated circuit shrinks the size of the digital video file but maintains its superior quality.

GeoVision DVR Security Camera cards may contain several components of a standalone DVR system that can be utilized on a personal computer instead. For example, GeoVision DVR PCI cards usually provide the input connectors or the camera’s output line, and they contain the processor and the CODEC utility. Sometimes they may even contain the DVR, although most cards utilize the PC’s hard disk drive as the DVR. IF the system contains any special functions such as Pan-Tilt-Zoom (PTZ) control cameras the cards will often contain the circuitry needed to control these cameras through the computer.

One GeoVision DVR Security Camera specialty is the GV-LPR. The GV-LPR is GeoVision’s proprietary parking lot security system that includes License Plate Recognition (LPR). In addition to reading and recognizing vehicle license plates this system is also contains advance motion detection features. Motion detection combined with PTZ cameras can actually track or follow moving objects such as automobiles.

A GeoVision DVR security camera then, is a security camera that can utilize the services of a personal computer by using a special PCI card to act as a standalone security camera system. Since GeoVision also manufactures a hybrid PCI card, a GeoVision DVR Security camera system can contain both contemporary digital video and legacy analog video cameras. In addition, GeoVision has a full line of DVR cards with additional features to fit just about any security system need.

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Wireless Surveillance Camera with DVR Systems

Written By:
Thursday, July 8th, 2010

Some of the most popular security surveillance systems are the wireless security camera with DVR systems. It’s not hard to understand why these systems are in demand. They are simple and quick to install, they are a complete standalone system with great versatility that lends them to almost any application, and they are affordably priced.

A typical wireless security camera with DVR system has the following components:

  • • One to several wireless digital video cameras;
  • • A wireless receiver unit;
  • • A processor/Digital Video Recorder (DVR) with a CODEC utility, and;
  • • A monitor for viewing live or recorded video.

While this is the basic configuration, many wireless security cameras with DVR systems may vary from one component to another to accommodate each individual user’s application needs. That’s one reason why these systems are so popular; they can adapt to almost any situation.

Basic wireless security camera with DVR systems work by sending their video images via radio waves. The wireless digital video camera captures the video image and converts it into an electronic signal. The electronic signal is converted into a radio signal and is sent to the receiver using the wireless camera’s built in transmitter and antenna. Most modern wireless systems use the 2.4 GHz or 5.8 GHz radio band technology (the same technology used with wireless home telephones). The receiver accepts the transmitted video signal in radio form and converts it back into an electronic signal. It then passes it on to the processor/DVR.

The processor converts the electronic signal into a digital video file. Digital video files are actually several digital photographs taken in succession in a small amount of time. Typically, high quality video files will contain about 30 photographs or frames per second. This can cause the size of the digital video file to be extremely large in a relatively short period of time (e.g. in just minutes). The processor uses software or hardware called a CODEC utility (an acronym for COmpression/DECompression) to make the file size smaller and easier to handle without sacrificing quality. The file is then displayed on the monitor for live viewing and also saved on the DVR for archiving or for later use.

Wireless surveillance cameras are the key components to the versatility of a wireless surveillance camera with DVR systems. The cameras can be categorized into indoor and outdoor types.

Outdoor cameras are just like indoor cameras except the cameras are built inside a cover or case. The cameras are usually rated as to the amount of protection the case provides from foreign objects getting inside and reaching the camera parts. This rating is an International Electrical code standard called an Ingress Protection rating or IP code. A rating of IP66 or IP67 is satisfactory for most outdoor applications. Both ratings indicate that the camera is free from dust entering it and IP66 means it is protected from powerful water jets while IP67 means it can be submerged in up to 1 meter of water.

The wireless security cameras used with wireless security camera with DVR systems can be used in a variety of lighting conditions. There are highly specialized cameras for many different lighting conditions. The two main types of specialized cameras are the day/night vision wireless camera and the night vision infrared wireless camera.

The cameras use and electronic sensor chip to create the video image. There are two different types of sensor chip each with its own set of advantages and disadvantages. One type is the Charged Coupled Device or CCD and the other is a Complimentary Metal Oxide Semiconductor or CMOS.

Day/night vision cameras have chips that are incredibly sensitive to small amounts of light and can therefore produce high quality color video in very low light conditions. However, they cannot produce a video image in total darkness; they must have some visible light.

Night vision infrared (IR) wireless cameras produce a high quality color video when there is sufficient visible light. When there is not enough visible light or in conditions of total darkness, these cameras can produce a high quality black and white or monochromatic video image using infrared light.

There are other options available for wireless security cameras used with a DVR system. These include recording audio, Pan-Tilt-Zoom (PTZ), and networking capability using the internet.

What ever your situation requires, there’s bound to be a wireless surveillance camera with DVR system for you. These systems are quick and easy to install and economically priced.

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Home Security Standalone DVR System

Written By:
Monday, May 24th, 2010

A home security standalone dvr system can provide the security and peace of mind for most residential applications. Huge selections in camera types, video recording technologies and monitoring options have made digital video camera systems the ideal choice for home security and monitoring.

Exactly what is a home security standalone dvr system? A home security standalone dvr system consists of the following components:

• Digital video cameras
• A processor/capture board/and CODEC application
• A digital video recorder or DVR, and;
• A monitor if desired

Digital video cameras for home security standalone dvr systems are manufactured in two basic types, indoor and outdoor. Outdoor cameras are usually “weatherproof” meaning they are able to withstand environmental weather conditions like rain, snow, and heat. Indoor cameras are designed for used in covered environments and do not usually contain the same type of camera enclosure that provides protection from the elements.

Both indoor and outdoor digital video cameras for home security standalone dvr systems can be wired or wireless. A wireless camera does not require an image transmitting cable to be connected from the camera to the processing unit. Instead, these cameras transmit their data via built-in antennae to receiver units that are usually located near the processor, dvr, and monitor. Wireless camera units usually transmit their data on the 2.8 or 5.8 MHz radio band and can provide fairly long line of sight ranges for transmission.

Whether the cameras are indoor/outdoor and wired/wireless they can also be day/night vision or infrared (IR) night vision cameras.

Digital video cameras produce a video image by using one of two different types of electronic sensors, both of which can produce color or black and white video. Charged Coupled Devices or CCDs and Complimentary Metal-Oxide Semiconductors or CMOSs convert captured light into electrical energy that can be used to create high quality video images. CCDs and CMOSs can be very sensitive light and create high quality video in very low light conditions, utilizing as little light that is available on moonlit nights for example. Cameras that use these sensors are usually referred to as day/night vision cameras and although they can operate in very low light condition, some visible light must be available to produce a video image.

There are digital video cameras that can operate in conditions of total darkness. These cameras are normally called night vision cameras and operate by creating video images from infrared or IR light. CCDs have the inherent ability to detect IR radiation light which is invisible to the human eye. A digital video camera for home security standalone dvr system can take advantage of this characteristic by “bathing” the target area with IR light. Since the light is invisible to the human eye, we cannot see or detect the presence of the IR light. IR Light Emitting Diodes or LEDs are used to produce the IR light for this purpose. IR LEDs are placed around the camera lens so they are aimed at the same target area as the camera and illuminate the area to record IR video. IR images are monochromatic or black and white.

The home security standalone dvr system is a security camera system that does not require any additional equipment, such as a personal computer to operate. The cameras transmit their data to a processor or capture device that converts the electronic information sent into a digital video file that can be watched on a monitor and stored on a digital video recorder or dvr. Often a COmpression/DECompression (CODEC) programs or wired circuits are used to reduce the size of the digital file while maintaining high quality video images. This provides for easy storage and portability of the file, allowing large amounts of data to be stored.

The digital video recorder of a home security standalone dvr system is much like the hard drive on a personal computer. It is a magnetic storage disk or plate that stores the video in digital file format for later viewing or archival purposes. Files can even be copied to other mediums and viewed on personal computers or DVD players.

Home security standalone dvr systems can be used to for a variety of applications. They are great for providing perimeter coverage of the residence for security and surveillance purposes. They can also be used inside the home to detect and recorded unwanted intruders. In addition they can be used as bay room monitors, nanny monitors, and pet monitors.

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Wireless Security Camera with DVR Systems

Written By:
Thursday, May 6th, 2010

Wireless security camera with DVR systems may be exactly what you need if cabling security cameras is not an option for you. There are several other good reasons for utilizing wireless security camera with DVR systems. Let’s look at the components of a typical system and see how it operates.

The basic components of wireless security camera with DVR systems are the wireless security/surveillance camera(s), a wireless receiver, a CODEC or capture board, and the Digital Video Recorder or DVR. Additional accessories can include a CD/DVD writer for archiving files, pan/tilt devices, add-on microphones, and additional lenses to name a few.

The key to wireless security camera with DVR systems is of course, the wireless camera. While there are security cameras that operate from rechargeable battery packs, a wireless security camera is not totally wireless. All security cameras need some sort of power supply and if the camera is not battery operated, wires will be needed to supply the camera with the required electricity. The term “wireless security camera” typically refers to the fact that the camera does not require wires, usually in the form of coaxial cable, to transmit its signals. Instead, the cameras used in wireless security camera with DVR systems normally transmit their images as radio signals via antennae using the 2.8 GHz or 5.8 GHz band. This eliminates the cabling that would be required from each camera to the receiver or DVR unit.

Wireless cameras come in many types and sizes and because of modern technological advancements can offer all the features of a non-wireless camera. Some of those features may include pan/tilt/zoom capability, audio recording, day/night vision, infrared or IR imaging, indoor/outdoor usage capability, and internet or IP networking. The type of wireless camera you use is dependent on your needs, so be sure to purchase cameras that can fulfill your monitoring requirements.

The next component in wireless security camera with DVR systems is the receiver. Typical wireless system receivers can receive and/or process up to 4 cameras at a time. Usually, if the system has more cameras than four, additional receivers are added to accommodate the additional cameras. Each camera is assigned a “channel” on the receiver; hence 8 channel systems usually have 8 cameras with four cameras or channels on each of two receivers.

After the receiver accepts the cameras’ transmissions, they are processed using either software or circuitry boards or both. The processing creates useful digital picture/video files out of the data sent by each camera while reducing the size of the file to allow for ample recording and storing. This processing is known in the computer industry as Compression and Decompression processing and is usually referred to in the abbreviated form, CODEC. Common types of CODECs include MJPEG and MPEG4 as well as the relatively new format H.264.

Once the data has been processed and the files size compressed, it is transferred to the DVR for storing. A DVR is basically the same as a personal computer’s hard drive; it is a high-speed magnetic disk that can store tremendously large file sizes. Typical DVRs today have a capacity of at least 250 to 500 Gigabytes and may go as high as 1 Terabyte.

DVRs keep track of where the beginning of the recording takes place on the hard disk so that when the maximum storage capacity of the disk has been reached, the DVR can begin recording over the older stored files at the beginning of the disk. Depending on the CODEC and storage capacity of the DVR, this can provide you with several hours to several days of continuous recording without recording over earlier files. This is advantageous because it provides a buffer of time before the rewriting of new files will eliminate the earlier files. Usually, most systems come with additional options such as USB thumb drive support or internal or external CD/DVD drives that can be used to permanently save or archive footage (for example, when needing to provide a copy to police departments or as evidence).

Wireless security camera with DVR systems can fulfill your requirements for a security/surveillance camera system as needed without using the sometimes cumbersome coaxial cabling for transmission of non-wireless cameras. This also has a tendency to offer a little more freedom in the choice for placing cameras which may provide ultimately better surveillance coverage. Make sure you are aware of just exactly what functions you need so that you can make the correct choice when purchasing wireless security camera with DVR systems.

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