Frequently Asked Questions
CCTV (Closed Circuit Television) is the monitoring and recording of people, processes or property through the use of a camera and other related electronic security systems. This form of visual security can be sub-divided into analogue and IP (Internet Protocol) solutions.
Cut down on losses due to theft Increase employee productivity Increase customer and employee safety Provide 24/7 access to your system Reduce the need for manual security (security guards)
A basic CCTV system is made up of a CCTV camera, a video transmission system that sends video signals from the camera to a recording system such as a digital video recorder (DVR) which in turn sends the image to a monitor for display for viewing of playback purposes.
CCTV cameras use the analogue method to record images on tapes. So it is required to frequently change the videotapes and the resolution of the recorded images is of very bad quality. On the contrary, a DVR (Digital Video Recorder) processes video images as a digital method, therefore, enabling recording for a long time without the replacement of videotapes and providing clear images in high resolution without degradation of image qualities even though the video footage played several times. In addition, DVR has real-time image transmission and remote control functions on the Internet. It is evaluated as the most appropriate video monitoring system for any company that has been integrated by the network.
IP CCTV (Internet Protocol Closed Circuit Television), is a security surveillance system of IP Cameras and video servers which connects seamlessly with the Internet and Internet-related digital services, including Wi-Fi, Wi-Max, 3G or GPRS Access connection.
IP CCTV cameras are similar to analogue CCTV cameras in features and functions but offer far superior picture quality. They do not transmit their images and sounds as analogue signals but as data. They also offer remote configuration of their settings, and on some models, even the image sensor of the camera can be configured as required. IP CCTV cameras incorporate built-in web servers which allow for live monitoring, recording and configuration across a computer network or the internet.
Existing network infrastructure can be used, no long-distance cables are required. IP security cameras can be moved with minimum time & effort, and cabling does not need to be replaced. IP security cameras can be installed at any location, no matter the distance. The same camera could be viewed or recorded simultaneously at multiple locations and controlled on multiple security levels. The recording could take place anywhere. An existing PC or Server could be used for a few cameras. Any amount of recordings per camera can take place at the same time, at multiple locations for redundancy or off-site storage. Bandwidth could be controlled differently for each camera. Hard drive space can be shared across many systems for recording video or data. Audio or alarms can be connected to the same encoders which transmit the video. The existing alarm system could be monitored from remote locations.
An IP security camera image broadcasts the video images as a digitized signal over a LAN line (Local Area Network) where it's then transmitted to a computer or server. Each camera is connected to the network via a transmitter/receiver unit that converts the analogue signal into DVD quality MPEG-4 or H.264 digital video for transmission over the network infrastructure. Depending upon the software used to manage the digital images, it can record, display or retransmit the images to anywhere in the world. The software package can allow for analyzing data and selecting specific flagged items to watch out for. True IP-based digital surveillance uses CCD cameras that use signal processing that sends packetized video streams over the LAN through a Cat 5/Cat 6 cable rather than a coax cable network, utilizing greater bandwidth and standard TCP/IP communication. If security is an issue, full digital surveillance also offers the added advantage of data encryption opportunities to protect against image tampering.
IP-based network video solutions include equipment such as network cameras (IP cameras), network video recorders (NVR's), video encoders/decoders and relevant alarm and monitoring software.
Access control is the control and management of people, vehicles and goods to and from access points.
Increases corporate awareness of safety, health, IT and HR Delivers comprehensive protection by recording all identity-based activities Reduces exposure to loss and liability Protects every part of the business by complete control of physical and logical access Monitoring of employee productivity.
Code Based access systems A secure pin code entered onto a touch pad/screen is required, before Access to a controlled area is allowed. Proximity access control Proximity access control systems use cards/tags and readers to operate the access control. Proximity cards come in a variety of sizes but most modern systems use a card the same size and thickness as a credit card. Proximity tags can be clipped to key rings and can provide a more convenient and robust method of operating the access control reader. Bio-metric The newest technology in access control, bio-metric systems use the body's unique characteristics such as the retina, fingerprints or palm prints to determine authorized access through the use of fingerprint readers etc Access Control Systems can also be integrated with Time and Attendance systems and job costing systems to give administrators or management full control of their facility. Bio-metric time & attendance system requires staff to scan their fingerprint when they clock on or off, eliminating the risk of buddy punching and improving decision making by delivering real time information on staff activity.
Access Control requires four basic technologies for effective functioning. These consist of: A PC (personal computer) for overall system control. input devices - devices that detect conditions or events (not specifically connected to a door) e.g. temperature monitors, motion detectors, panic buttons and glass break detectors) Access Control doors and related peripherals, including door contact switches, card readers and keypads, and locking devices output devices - items that respond to the input devices