Today standalone dvrs surveillance systems are a proven method of crime reduction and prevention offering security for both premises and personnel.
While a CCTV surveillance system can't always stop an attack, it can be a deterrent and it can provide valuable evidence that helps to identify the perpetrator, or to give the police a better idea about what took place. The knowledge that a CCTV system could make a would-be burglar change his or her mind or capture their face and recorded if they decide to go ahead is the reason that many people invest in CCTV systems. WHAT IS CCTV?
A typical CCTV System consists of the following components: Digital Video Recorder (DVR), Cameras and a TV Monitor. Some options are microphones, sensors & relay outputs.
The Digital Video Recorder commonly known as DVR is the brain of the entire CCTV system, all input/output devices such as cameras, sensors, etc. are connected to the DVR. The DVR is programmed to record video and audio signals from the devices, recordings can be scheduled, activated on motion detect or even turned on 24 hrs. The DVR also process inputs from sensors such as smoke detector and turn on warnings as programmed in the CCTV system software.
A major function of the CCTV system is the ability to remote access the monitored site. This is achieved through a remote login via the internet to the CCTV system, no special software is required on the remote side, users can login just by using the Internet Explorer. For remote access to work, the CCTV system must be permanently linked to the internet by a broadband connection such as ADSL or Cable line. The standalone dvr cctv system can work behind corporate router and firewall.
Why Install CCTV?
Statistics shows that there is major reductions in the amount of undesired activities where CCTV cameras are installed and this is why CCTV is seen by many as the best system for deterrent and detection.
There are several reasons why you might want to install CCTV, one reason is to capture would be thieves red-handed, but also an increasing reality in the retail industry is combating staff theft. Cameras can be placed around tills, stock rooms and staff exits in order to monitor the activities of retail staff.Many of our customers are glad that they can remote-view their sites just by logging into the internet, while some residential users use CCTV to ensure that all is going well at home.
CCTechnologies specializes in providing CCTV systems which meet the requirements of a variety of property types, such as retail premises, educational establishments, industrial sites and offices. standalone dvr china can be simple or complex, for example to identify individuals or vehicles, to alert an operator to the presence of an individual or to visually patrol a pre-defined area. Once objectives have been agreed, an appropriate mix of system components can be recommended.
Observation
Where real time observation of images is required, a system may be designed to prompt the operator by configuring pre-set views, pre-determined camera sequences or providing triggers from events such as alarms or motion detection.
Remote monitoring
Remote (Distant) Monitoring of your premises 24/7 through an internet connection, LAN or WLAN infrastructure.
Digital Video Recording (DVR)
The DVR is an intelligent digital video management system that digitally records multiple camera images directly to the internal hard drive, eliminating the need for conventional VCRs and their associated maintenance and degradation limitations. However, The DVR does more than just record; it provides recording, playback and archiving whilst using it's sophisticated search functions to define and find only those important events that meet your criteria. The DVR provides a powerful, intelligent solution to your security and operations systems. It is networkable, easily integrates with standalone digital video recorder equipment and is a cost effective solution for many new and existing customers.
STAND ALONE DVR VS. PC BASED DVR
Surveillance system has become an integral part of your home or business security solution. When searching to purchase a Security camera or security DVR, you will find that there are certain decisions you need to make before purchasing your first security DVR. There are two basic types of DVR's available: a stand alone DVR and a PC-based DVR. A stand-alone DVR is a unit that looks like a VCR but is actually a computer running on a Linux base or proprietary operating system designed to function by itself as a digital video recorder. A PC-based DVR is a Regular computer, with a DVR capture card installed and configured, which basically transforms the basic computer into a full functioning DVR system. The system usually runs on windows XP or Linux, which perform on the same basic functions
Stand-alone Security DVR System A stand-alone 4 CH H.264 DVR is a computer board built on one complete circuit board. It looks very similar to a VCR, but it has the entire components that a regular computer has. The system runs on an operating system that is built into a chip / flush memory. For that reason Stand-alone DVR's are extremely reliable and very easy to install and use. They are usually managed and configured by a remote control like a VCR. The software is built in to the flash memory as firmware and is separate from the data stored on the hard drive.
PC-based Security DVR System PC-based DVR is a DVR Capture Card built inside a computer. The system is either a tower or a rack mount. Installed within the system is a DVR capture card. This board captures the video from the cameras and works with the DVR software, providing all the necessary, video and recording functions: like, Video compression, converting the video to a file, camera controls and display, record and playback functions.
Stand-alone versus PC-based DVR'S PC-based DVR's have more advanced features than stand-alone models. Most of their strength relies on their processing power compared to standalone security DVR systems. PC Based DVR systems are also better suited for upgrades and systems expansions to support multiple hard drives and multi capture cards to support large amounts of cameras
In general when PC base and stand alone 4 Channel standalone DVR came out to the market PC-based DVR's had much more advanced features than stand-alone models and their processing power was stronger giving them the ability to process images faster and better. They also are better suited for upgrades and system expansions. But as time passed, Stand-alone DVR systems became more and more powerful and became very comparable to PC based DVR system in their performance and functionality. PC based systems still have more upgrade and expansion options, and for this reason most large institutions such as banks, malls, and airports utilize PC-based models rather than stand-alone DVR's.