Analogue Transmission Comparison: ESSA, BWA Technology  (2)

 
Transmission type
High-End
High-End
Video Inputs
6
--
Alarm Inputs
1 ~ 3
--
Built-in Modem
--
TX/RX
TX/RX
TX/RX
Telemetry Control
--
Pre & Post Alarm Image Buffer
--
Video Outputs
1
--
Functions
3
--
Digital
--
Switching Type
Sequential
--
Signal Mode
PAL
--
Network Protocols
--
Downlink: up to 3.6 Mbit/s, Uplink: up to 384 Kbit/s

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Latest CCTV transmission system case studies

BWA offers solutions for various institutional customers
BWA offers solutions for various institutional customers

BWA Tehnology's equipment is in use in many German enterprises and governmental agencies.  Typical applications include long-term surveillance with independent power consumption for monitoring of entrances, inventory or investigations into corruption.  DiREX-Pro DVRs are also ideal for military applications, as they can be used with night-vision equipment.  With integrated support of WiFi/cellular data transmission, this solution is perfectly suited for covert deployment and operator free use. The challenges 1)  In order to create conclusive criminal profiles, continuous monitoring is required for the duration of some days up to some weeks. 2)  Video equipment must be installed in extreme operating environment/conditions, such as inside a vehicle or a container without a permanent physical access to a data carrier. Solutions and results DiREX-Pro DVRs are suitable for transfer even on low bands such as WLAN, DSL, ISDN or 3G/UMTS/HSPDA, EDGE and so are ideal for mobile use.  The frame rate adjusts itself to the available bandwidth - but maintains consistent video quality.  Local recording is always in real-time and so video data can be completely restored.  Automatic email notifications triggered by sound, movement, alarms or power failure are possible - complete with picture attachments. The new MR-36 router is a handy mobile extension for the DiREX-Pro series.  With the use of radio networking, users can access and upload files from any place at any time.  The compact and intelligent router ensures efficient and secure video transfer. Unique DiREX-Pro features on the market: Extended operating temperature range: -20...+65°C (normally: +5...+45°C) - Pro.A40 only; Increased operating temperature gradient: 60°C/hour (normally: 20°C/hour) - Pro.A40 only; Suitable for automotive use without need of additional vibration absorbers - Pro.A40 only; Excellent ratio of volume (about VHS-tape size) and power consumption (fan-free operation, maximum 30 BTU generated per hour) to system performance; No on/off switch; resistance to unexpected power drop with proper system shutdown; Full speed local recording and simultaneous transmission with bandwidth adaptable FPS reduction; 2 independent audio channels; sound-controlled video recording or control of external equipment; User-updatable OS (Linux) and video encoder located only in Flash memory; Support of RS-232/USB compatible low-budget PC-extension: WiFi, GPS, GPRS/GSM etc. Highly efficient video encoder provides long recording time, low network traffic and triplex operation even with low bandwidth access: WLAN, DSL, ISDN etc. BWA Technology will be exhibiting atMILIPOL Paris 2007, stand 2N23

Premier mixed-use property protected by NVT's IP Migration Solution
Premier mixed-use property protected by NVT's IP Migration Solution

The mission TWELVE in Atlantic Station is Atlanta's premier live-work-play condo community. Its 26 stories of stunning architecture and luxury condominium residences are built atop a stylish boutique hotel and located in the heart of “Intown” Atlanta. The complex has over 80 cameras, covering the campus and additional areas such as sport recreation, parking garage, retail stores, and building perimeter. To meet today’s higher resolution standards, the original 2005-installed analogue cameras were replaced with new IP-based equipment. The solution Although IP surveillance system migration was necessary, wire distances far exceeded the 803.2 Ethernet standard, making it difficult and economically impractical to pull new cable. Fortunately, existing runs of up to 1,200 feet of Coleman 16/2 24VAC cabling were in very good condition. With those factors in mind, Blane Segura of Northwest Electrical Integration (NEI) conducted a technology review of available application options. He found that NVT was the only technology capable of leveraging just one pair of existing cable to power his 12 watt PoE cameras. During this process, Todd Dunham of CSC/ Atlanta demonstrated the NVT Ethernet over 2-wire (Eo2TM) technology. He has been a long standing proponent of NVT’s technologies. He was able to successfully perform an on-site demonstration at Atlanta Station. The Eo2 easily transmitted IP data and camera PoE over the extended distances. Russ Moore, the NVT sales representative at Murphy and Cota, assisted with technical issues and design details. The result No additional costs were incurred by Atlanta Station to replace or add to the existing network cabling, nor was there any need to provision new IDF closets or use Ethernet cable extenders to support the distances. In selecting the NVT Eo2 Ethernet solution, NEI Inc. was able to deploy a flawlessly-installed, cost-effective state of the art surveillance upgrade, using existing cable at extended distances with no disruption to retail or residential customers. Product footnote NVT’s Eo2 Ethernet over 2-Wire product is also capable of using all 4-pairs of a UTP cable extending power and data distances up to 2,000ft, or 1,300ft on Shielded Twisted Pair. NVT supports traditional coax based analog camera-to-IP migrations with the EoC Ethernet over Coax product. It works with legacy or new coax with data and PoE power at RG-59 distances up to 8,000ft.

NVT secures aircraft service complex
NVT secures aircraft service complex

Network Video Technologies' (NVT's) range of award-winning unshielded twisted pair (UTP) CCTV camera video transmission products, have been employed to provide high-performance CCTV transmission at five aircraft service and maintenance hangers at King Khalid International Airport. Located 35 kilometers (22 miles) north of Riyadh, Saudi Arabia, as part of a comprehensive airport complex that includes three terminals, a control tower and two parallel runways, the five specially equipped hangers are used to carry out repairs and scheduled maintenance on a variety of international and national airlines' aircraft.With over 10,000 sq. metres of floor space each, the five service hangers can cater to aircraft as large as the latest Airbus A380, Boeing 747-400, or multiple single-engine light aircraft. Assisting the provision of effective health, safety, fire prevention, and security procedures at the massive complex, an NVT-based CCTV system has been specified and installed by the Modern Buildings Group. Mr Mohammad Amin Almatt of Modern Buildings Group explains: "We planned to use CCTV images from the system for a variety of roles, including security, health and safety and fire/smoke detection, via the use of Video Smoke Detection (VSD) units, so the quality of video we required from the cameras was of great importance. "Employing a traditional coax based system at the site would have proven very costly, time consuming to install, and would have meant that an individual fused spur power outlet would have been needed at each of the 25 internal and 10 external camera locations. This would have added significant supplementary costs in equipment and installation time. Additionally, camera locations ranged from 200m to 1Km in end-to-end transmission distance to the on site control room. Employing coax over these distances would have been detrimental to the camera image quality in this mission critical system."NVT PVD™ is keyUtilising NVT Power, Video & Data (PVD™) technology, the Modern Buildings Group engineers were able to provide each camera in the system with low voltage power, transmit fibre-like quality to the control room, and provide camera telemetry - all via a Cat5 UTP network contained within each hanger's structure. From here, a 25 pair Cat3 UTP backbone is then used to transmit images from each hanger, back to the centrally located equipment and control room. Protecting the perimeter of each hanger, Pelco Spectra PTZ dome cameras with UTP outputs are situated on the exterior corners of each hanger. Images from these cameras are used to monitor the hanger environment for any possible unauthorised entry, and to ensure health and safety procedures around the hanger are adhered to. Within each hanger, Pelco Spectra Mini Dome cameras are mounted in four equally spaced positions along an interior wall. Each Pelco Spectra Mini Dome is equipped with a UTP video output that allows direct connectivity to the UTP cabling network and transmission back to an NVT NV-4PS10- PVD 4-Channel Power Supply Cable Integrator Hub. Each NVT Power Supply Integrator Hub is located at a secure point within each hanger and provides a 1 amp/channel power supply for each of the hanger's four cameras, alongside pass through video and telemetry data - all via each hanger's Cat5/Cat3 UTP network cabling infrastructure. Exterior cameras are linked via Cat5 UTP to a centrally located NVT NV-16PS10-PVD 16-Channel Power Supply Cable Integrator Hub, which also provides individual power supply and pass through video and telemetry data to the control room. "Powering cameras via the UTP connection was a great advantage," explains Mohammad Amin Almatt. "It ensured that we kept control of all aspects of the installation and did not have to rely on third-party electrical installers to provide fused spurs for each camera point. This also presented a significant installation cost-saving that we were able to pass on to our customer." UTP Transmission - Network Backbone and Control Room Camera signals are transmitted to the on-site control room via a 25-pair Cat3 backbone, where they are received by two NVT NV-1672 16-Channel DigitalEQ™ Active Video Receiver Distribution Amplifier Hubs in the equipment/control room. Employing NVT's latest generation DigitalEQ™ technology, theNV-1672 is a 16-channel active (amplified) hub that allows the transmission of real-time monochrome or colour video for distances up to 1,6km (1 mile) using UTP cable - well within specification of camera infrastructure at the airport, the furthest of which is 1Km from the control room. The DigitalEQ™ receiver hub continuously and automatically conditions each video signal, compensating for cable attenuation, wiring polarity, ground loops, and voltage transients, independent of video signal content. This DigitalEQ™ technology provides the best possible image quality right from the moment of connection - all of which were of advantage to the Modern Buildings Group engineers whilst installing and commissioning the system.    King Khalid International Airport has been provided with an innovative electronic surveillance solution Mohammad Amin Almatt explains: "Utilising the NVT NV- 1672 hub with DigitalEQ™ technology meant a smooth, error-free and rapid installation process for our engineers. Via simple cable connectivity, we were able to consult the intuitive LED indicators on the hub's front panel to instantly diagnose both power and video connectivity for each channel. Had we used a traditional coax transmission method or powered each camera locally via a dedicated fused-spur, we would not have enjoyed such simple and instantly accessible connection diagnostics, which could have resulted in an protracted installation period." In addition to on-site monitoring and recording via the latest control and DVR technology, the high- performance images are also monitored by electronic Video Smoke Detection software. VSD was developed to overcome the difficulties encountered in environments where traditional forms of smoke and flame detection are considered to be ineffective or impractical, such as the aircraft service hangers. False alarms could be frequently created as a by-product of everyday on site processes. To overcome this, the Riyadh system uses VSD technology that analyses live CCTV camera images - using advanced video analytics to detect the unique movement of smoke via the behaviour patterns of each pixel in the video image."This is why a consistent quality of image is so important at the hangers," explains Mohammad Amin Almatt. "Using NVT technology we were able to provide both the DVR and VSD devices with conditioned, interference free video. Thanks to the continuous and automatic conditioning of the video signal via the NVT DigitalEQ™ technology, the image quality remains consistent and unaffected by changing conditions, such as interference levels or changing lighting conditions - critical for these types of video analytic packages. This again removes the need for any further image adjustment and eliminates another potential source of false alarm." If the unique graphical signature of smoke is detected within the video image, the VSD system can automatically release fire doors, sound alarms and provide speech evacuation commands through the PA system - all whilst alerting an onsite fire response team that consists of five separate fire stations with specialist fire fighting vehicles.  "The system's performance is proving a great success," concludes Mohammad Amin Almatt. "We have provided an innovative electronic surveillance solution that fulfills multiple roles within the unique demands of the aircraft service environment. Thanks to our expertise and NVT technology, we were able to deliver a reliable, high-performance and cost effective CCTV solution to our customers at King Khalid International Airport."