Vista's new SmartTel, SmartDisk and SmartLAN give users a low-cost solution for digital video transmission, recording and automated alarm event monitoring.
The SmartTel transmits images from up to ten cameras in compressed form over PSTN, ISDN, TCP/IP and other networks. Up to ten alarm inputs are supported and it can capture up to 60 pre-alarm images. The unit can also be armed by on-site intruder detection systems and can be readily integrated with dome systems using a telemetry module.
Also in the series is SmartDisk, a four-camera digital video recorder which combines the functionality of a video switcher, VCR and multiplexer in a compact unit. It uses JPEG compression with conditional refresh or full frame recording (up to 16 pictures per second).
The SmartLAN has been designed to work with the SmartDisk and Smart-Tel products. It has a TCP/IP alarm adapter, allows connection of both units via local or wide area networks.
Quality over IP
Imigix's IP SOLO is an integrated transceiver that allows high quality remote control over IP networks, using low bandwidths. Said to be compatible with control of any third party device, it gives two-way video and audio, alarms, telemetry and built-in 10/100 BaseT Ethernet port. It also incorporates Imigix's IP Bandwidth Management Technology software and can be configured on routed networks.
Bandwidth can be set from 4.8kbps up to 500kbps for high quality video at up to 25 frames per second. Audio and telemetry control comes as standard with two-way, full duplex video and audio.
Bespoke requirements
From Endusis comes EPoSurveillance, a remote digital monitoring system to improve business security – intelligently. It is a software and a hardware package, which works to suit exactly individual, bespoke requirements. Linked to a local area network, alarm system, till or any security system, it monitors staff, products and customers.
The EPoSurveillance system is programmed to operate where, when and how the customer needs it to, and can be used as a standalone system, or with any existing CCTV system. In addition, Endusis can work to upgrade analogue CCTV operations to a more effective, higher quality digital functioning.
Capable of recording pre and post events, to record criminal details as protection against fraud or theft by customers, staff or criminals, the EPoSurveillance system will also send images off site to a secure server, thus preventing tampering of evidence.
A bit of both
The Axis 2420 network camera from Axis Communications was claimed to be the world's first professional network camera that simultaneously transmits video in digital and analogue formats, using motion JPEG in full video quality. This solution allows backwards-compatibility with traditional analogue CCTV systems.
Aimed at the medium to high-end security markets, the system is equip-ped with features such as motion detection, PTZ support, relay control and event-triggered alarm handling.
Networking uncompressed
Sony's DFWS-77 Digital Imaging Station is a standalone solution for the networking of uncompressed images from Sony IEEE 1394 digital video cameras. The compact unit connects with the camera via a single cable, allowing images to be viewed in real time in computer RGB format.
With no software to install and near instant start-up, the DFWS-77 is operated via its high-resolution monochrome LCD touch screen for easy operation and control.
Clear as crystal
TeleEye III, the third generation TeleEye video transmission unit from Signal Communications, is suitable for video surveillance through various communication channels, including ISDN, PSTN, mobile network, local area network and the internet.
Coming with four video, four alarm inputs and one relay output, the VT3-4CA transmits video through its newly built-in RJ45 interface to a LAN, using TCP/IP protocol, and achieves maximum refresh rates of 25 and 30fps for PAL and NTSC video respectively. It brings clear pictures of 640 x 480 pixels.
Other features include digital video recording, alarm call-back, pre-alarm recording, electronic patrol and telemetry control of popular domes.
Vehicle-to-vehicle transmission
A digital wireless video transmission system from CT-Video of Germany enables encrypted video signals to be transmitted from moving vehicle to vehicle, even in mountains, tunnels or industrial environments. This is achieved by combining established radio techniques with new image processing technologies.
For safe radio transmission, the video data are compressed with Wavelet technology and transmitted by Direct Sequence Spread Spectrum radio procedures.
The frequency is the licence-free ISM band with 2.4 or 5.8 GHz.
Digital or analogue
From Astrotel Europe comes a range of transmitters and receivers using 2.4GHz technology. The range supports PAL, SECAM and NTSC format, with a range of power supplies for UK and export markets.
The 2.4GHz technology allows digital or analogue video signals to be transmitted without cables up to 1km, depending on the model used.
Sends an image via e-mail
Convision Technology's Vistabox 200 is a compact video web server which produces live images from up to two cameras. Images are transmitted at a rate of up to 25 per second in a LAN, via ISDN. The Vistabox 200 is operated via a browser and also provides the user with event/alarm inputs.
If an activity is transmitted to the unit via an intrusion alarm, it immediately sends an alarm image in JPEG format via e-mail, so that if the unit is stolen or damaged the images will already have been transmitted and kept for evidence.
Should solve problems
Network Video Technologies (NVT) manufactures CCTV products for the transmission of high quality, real-time video and audio over unshielded twisted pair cable. The product range comprises passive and active single and multiple channel video transmitters and receivers. NVT’s inbuilt gain equalisation, ground lifting and transient protection all contribute to video transmission performance, resulting in a superior quality of signal compared to when using coax. Primary applications are for use across medium/large CCTV installations where the bulk and cost of cabling, installation logistics, transmission environment and quality of distributed video pictures may be an important issue. NVT says that anywhere coax or fibre is used, these UTP transmission products can provide a viable and competitive solution. Bench Tested in Security Installer last August, our experts reported: “UTP cables are significantly cheaper than coaxial and from the installer’s point of view they are also easier to lay, having considerably less bulk than coax. “It can be laid in high noise environments and alongside wire bundles carrying telecom, video, data and low voltage power. This could be significant in new buildings or large scale installations.” They concluded: “The modules are very well built, easy to install and set up, and the lifetime warranties suggest NVT is reasonably confident about such things as service life. “Our basic checks suggest that the modules should perform well in the real world and the cost benefits of the NV-213A/M transceivers should kick in very quickly indeed, possibly on runs as short as 200m.”Source
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