Underground
Communications
Solutions

Chilean technological
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a global presence
Technology at
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communication systems
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SIGMA PRODUCES UNDERGROUND COMMUNICATIONS FOR :
  • Underground mining
  • Vehicular tunnels
  • Confined environm

UNDERGROUND MINING

Underground mining requires coordinating tasks in each work shift, in the same way open pit mining does with radio systems.

For that purpose we have designed a fully reliable communication network, easy to install, easy to manage and modify. On the other hand, it is a system especially robust for harsh mining environments.

VEHICULAR TUNNELS
The new vehicular tunnels include advanced safety systems. For that reason we have designed a communications systems that allows various signals to be entered and broadcast wirelessly within the tunnels (FM music, BREAK IN, VHF, UHF, TETRA, P25, Cellular, etc.)
CONFINED ENVIRONMENTS
Other practical purposes for our communication networks are:
  • Water tunnels, for its construction coordination.
  • Service tunnels. There are several underground services below cities, such as mains network, underground railway, etc.
  • Big ships.
  • Wide underground levels, underground parking, and every closed space without any surface connection.

PRODUCTS

 

LEAKY FEEDER FAMILY

Head End: It is the core of the system. It centralizes several voice and data channels in order to send information through the Leaky Feeder network.

AMPLIFIER: It keeps the signal levels smooth in the Leaky Feeder network to ensure a high communication quality.

LEAKY FEEDER CABLE: It allows wireless communication through tunnels, no matter their length as far as it has been continuously installed.

SHUNT: It branches out the Leaky Feeder network through the differing mine tunnels.

 

DRS FAMILY

MASTER UNIT: It allows signal gathering ( diverse frequency bands) to be sent through the tunnels via optical fibre.

REMOTE STATION: It converts and adapts all the signals that the Master Unit sends.

RADIANT CABLE: It broadcasts every signal the Remote Stations sends.

 

FAMILY OF ADDED VALUE SYSTEMS 

SIGMATION SERVER: It is a SIGMA built server, ready to host added value solutions through the SIGMA communication network.

REMOTE DAGNOSIS: It is an application that monitors and controls the SIGMA communication network.

TAGGING: It is an application that allows to detect personnel or vehicles.

EQUIPMENT CONTROL AND MONITORING: It works by means of data gathering in order to control ventilators, gas detectors, electrical substations, water levels or pump generators activation, etc.

News

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SIGMA PRODUCES UNDERGROUND COMMUNICATIONS FOR : Underground mining Vehicular tunnels Confined environm UNDERGROUND MINING Underground mining requires coordinating tasks in each work shift, in the same way open pit mining does with radio systems. For that purpose we have designed a fully reliable communication network, easy to install, easy to manage and modify. On the […]

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SIGMA PRODUCES UNDERGROUND COMMUNICATIONS FOR : Underground mining Vehicular tunnels Confined environm UNDERGROUND MINING Underground mining requires coordinating tasks in each work shift, in the same way open pit mining does with radio systems. For that purpose we have designed a fully reliable communication network, easy to install, easy to manage and modify. On the […]

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About Us

SIGMA – UNDERGROUND COMMUNICATIONS SOLUTIONS

SIGMA has provided communication solutions to more than 1000 underground mines and tunnels in the 5 continents. We contribute with innovation to the mining industry, backed for many years of experience installing communication systems, at a low cost and a high performance. Furthermore, we provide added value by integrating solutions concerning security and productivity on state-of-the-art communication platforms that grant your Company with a clear competitive advantage.

From the begging SIGMA has developed permanent innovations to its underground communication systems, to provide the mining industry and confined spaces with the most advanced technology, from the continuous re-design of its Leaky Feeder networks, to the design of DRS networks, that allow multiple wireless signals to be sent underground.

SIGMA started on 2010, based in Concón city, central cost of Chile.

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