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CCTV Recording Options
If you want to be able to record your CCTV footage then the following factors need to be taken into account:
- Maximum length of recording time required;
- Quality of recording;
- Method of recording;
- Continuous
- Manual
- Event Led - i.e. when your system detects motion.
- Recording Equipment
- Analogue
- Digital
Capability for storage, retrieval and transfer of cctv footage
2.1 Domestic VCR
This is a simple and low cost option that can provide good quality footage recorded in real time. VCRs can be used to provide continuous recording of up-to 8 hours or event led recording when used in conjunction with a PIR camera and a VCR activator. When using PIR cameras to carry out event led recordings you need to consider the start-up time for the VCR.
For example, if the recorder takes a few seconds to actually begin recording each time it receives the signal from the camera then the event may have elapsed before it is recorded (a person walking across the camera range may have passed the field of view before the image is captured on tape). In these situations a separate PIR detector could be used to trigger the recording and overcome this problem.
The other thing to bear in mind is that you cannot set the VCR to record a TV channel whilst the camera input is selected.
Domestic DVD Recorder
These operate on a similar principle to the domestic VCR but offer the additional benefits of:
- Higher quality digital recording;
- Increased storage capacity;
- Improved search and retrieval capability.
However, for disk only recorders the start-up time before recording actually commences is generally longer than a VCR. To overcome this it is recommended that recorders with a built-in hard drive are used
Standalone Digital Video Recorders
These are rapidly becoming the most popular method of recording CCTV footage. Essentially a DVR is a standalone piece of hardware that is designed exclusively for recording CCTV footage. It has a number ofDigital Security camera recorders clear advantages over the traditional analogue systems and these include:
- Storage Capacity – Days, weeks and even months of high resolution recording is possible through use of large capacity hard drives;
- Consistent Quality Recording – No deterioration of image quality no matter how many you overwrite onto the recording device or how long you store the images for;
- Viewing and Retrieval – Quick and easy access of footage due to digital format;
- Transfer and Storage – The digital format allows ease of transfer and storage of footage. Transfer and storage capability is further enhanced by DVRs with built-in CD writers and USB ports;
- Remote Access – Many DVRs have the capability for remote access from anywhere in the world through use of a remote PC;
- Multiplexed Recording – Capability to view and record multiple cameras simultaneously.
PCI Cards
These are digital video capture cards that can be fitted inside your existing PC to allow the connection of multiple CCTV cameras. The functionality and benefits of PCI cards is very similar to that of DVRs.
Detection
Even with systems that have a very long recording capacity, it is not always desirable to record continuously. Event-led recording is a more efficient means of capturing relevant footage and can be achieved by:
PIR Movement Detectors
Some cameras have PIR detectors built-in and for those that don’t it is possible to install a separate PIR as part of the overall system. In multiple camera systems with PIRs the footage that is being displayed on screen will automatically change to the area that has detected movement.
Video Motion Detection
This is used in digital CCTV systems and works by analysing the video signal from a camera. Changes in signal are recognised as movement and subsequently used to trigger recording if required. All Voltek digital systems allow users to mark one or more rectangular areas within the display screen and only when motion is detected within these areas will the system begin recording. Where possible, use of PIR movement detection is preferable rather than video motion detection, as it more reliable particularly for external use.
Time and Date Stamping
This feature superimposes the time and date onto your CCTV footage. Having this feature can be really useful to identify when an event occurred and was recorded, particularly if the footage is to be used for evidence purposes.
Cable and Connectors
Security camera wires connectors Cameras can be connected in a variety of ways. All our domestic cameras are supplied with 20m of cable and scart and / or phono plugs to connect directly into your TV, VCR or DVD recorder. All our professional cameras are supplied with 20m of cable and BNC connectors that will plug into our range of digital recorders. The Voltek camera leads can be extended upto 100m in total by the use of appropriate extension leads. Co-axial cable with a local power supply to the camera can enable the camera to be sited upto 250m away from the monitor or recording device. Detailed information on connectors and cable for each of the Voltek cameras is available on the relevant product page on the website.
Camera Protection
If your camera is likely to be a target for vandals then consider protecting it with one of Voltel wire cages is a Security camera wire cages
must. This not only saves your Security cameras from Vandalas but protects any evidences collected during the vandal acts.
We at For your Home along with Voltek really hope the following guide will help you in selecting the perfect security cameras for Your Homes and Gardens
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