Tehran Metro guarantees the safety of its new lines with Vivotek technology

The construction of the new lines of the Tehran Metro, transport nerve center in the capital of Iran, has 82 Network cameras and recorders from the manufacturer Vivotek to ensure the safety of personnel working in the tunnels and future facilities, thanks to its technology to withstand difficult light and environmental conditions.

He Tehran Metro connects since year 1999 to the inhabitants and visitors of the capital of Iran, with traffic greater than 2,5 million daily passengers, which, in addition to being the most used means of transportation, has significantly reduced congestion and pollution in this rapidly growing metropolis..

Made up of five lines, with a combined length of 152 Km., currently the Tehran metropolitan is being expanded with the construction of two other lines that will provide 430 Km. further, and is linked to Iran's regional railway network.

Aesthetically designed to harmonize with the architecture of the ancient city of Tehran, The metropolitan has advanced technological systems for its operation, in which it has been invested around 2.000 million dollars since the year 2010 and which continues to be updated as the metro network expands, where surveillance becomes increasingly demanding with the development of new lines.

To guarantee the safety of future travelers of the same, as well as the safety of the workers who build them, Those responsible for the Tehran Metro saw the need for a new surveillance system to cover the tunnels, platforms and workshops of this rapidly expanding network.

Coverage area, that lacks natural light and, therefore, it's very dark, It is also extremely dusty and humid, So the networked devices selected had to deliver sharp, reliable image quality under poor lighting conditions and the harshest operating conditions..

To respond to this complex challenge, the local security systems integrator Pooya Fara Negar was turned to. (PFN), which selected the manufacturer's technology and range of high-performance IP cameras Vivotek (as already happened in another project carried out in this country analyzed in Digital Security Magazine) to ensure the continuity of development work on the new lines of the Tehran Metro, with the certainty that the work areas, tunnels and platforms would be monitored 24×7 for a secure and stable network system thanks to this provider's video recording and management systems.

In total they have been installed 82 Vivotek network cameras throughout the construction zone of the new metro lines.

Difficult lighting conditions in tunnels and workshops required extremely sensitive systems, for which the IP8371E bullet type model was chosen, especially indicated to cover corridors with low or no lighting thanks to the integration of the Smart IR function, that prevents overexposure and reduces noise to instantly adjust the IR illumination intensity according to light changes in the environment.

Besides, The IP8371E's 3D noise reduction technology enables you to capture clear images in low light conditions and also helps reduce sensor noise bandwidth.. Added to this are powerful infrared illuminators, with a scope of 30 metros, to further improve coverage of the areas of the new metro lines.

For the entrance areas, the Vivotek IP8335H camera was chosen, that offers images with high detail in any lighting condition. The system integrates the WDR Pro function to capture the dark and bright parts of any image thanks to its double shutter, which allows two frames to be combined to create a very realistic image of the original scene, providing video quality very close to the capacity of the human eye.

The IP8335H also features automated shutter control, or P-Iris, High precision thanks to a built-in stepper motor that maintains the aperture at an optimal level at all times.

IP8371E and IP8335H cameras are housed in weather-resistant housings, dust-proof and vandal-proof, IP67 rated, ideal for the difficult conditions found in this type of construction.

Despite having a very extensive construction area, The entire installed network security system is controlled from a single location with Vivotek's Vast video management software, offering flexible monitoring of a large network of IP cameras in different locations with reduced security personnel, with the possibility of adding new devices at any time; which means that as the Tehran metro construction project grows or changes, the surveillance system will be able to grow or adapt easily.