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Mining

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  • Mining
The SmartPTT-based online management communication system at mining companies provides robust wireless communication for subscribers with each other and the dispatcher. Thanks to this, steady and efficient cooperation between subdivisions and groups of users can be achieved in quarry working conditions.
Advantages

The SmartPTT-based online management communication system at mining companies provides robust wireless communication for subscribers with each other and the dispatcher. Thanks to this, steady and efficient cooperation between subdivisions and groups of users can be achieved in quarry working conditions.

The SmartPTT-based system is a means of communicating with and coordinating teams in such specific conditions of the mining industry as:

  • problems with ensuring communication between dispatchers and subscribers in the lower parts of the quarry caused by abrupt changes in the terrain.
  • having a large number of isolated groups of users scattered both territorially (quarries, opencast mines, factories, crew settlements, etc.) and by tasks to be carried out (mining equipment, tankers, auxiliary transport, foremen and others).
  • high intensity of radio conversations between users inside quarries and dispatchers.
  • absence of network infrastructure for the transmission of data at remote sites (quarries) and problems with creating one thanks to the emergence and growth of dumps poured out across the whole area of the quarry.
  • specific requirements such as the mode of blasting to be carried out.

Benefits for the dispatcher:

  • A stable link for the dispatcher with the teams, even when moving from quarry to quarry, and communication with selected groups of subscribers or individual user call.
  • Separate automated workstations (AWs) can be organised for dispatchers, controlling auxiliary equipment, energy, processing plant workers etc.
  • The ability to see whether a user’s radio station is switched on, at which site the user is located, and the user’s status (loaded, waiting etc.)
  • Transport downtime alert and the ability to send nearest team to the object by tracking mobile subscribers using GPS
  • Remote monitoring of the environment around the radio station to keep up with the situation in the transport cabin if there is no response from the user.
  • Convenience of location for the dispatcher:  in the control centre or immediately near the quarry

Benefits for the workers:

  • A stable link with one another in groups or individually, and link with the dispatcher
  • The ability to link to personnel working in the quarry only within the boundaries of their quarry and with their dispatcher
  • Relocation of teams from quarry to quarry without loss of connection
  • Health and safety:  periodic voice notifications on the channel in the event of blasting being carried out, “Lone Worker” and “Man Down” modes.
  • Receive assignments and report on their performance via user terminals 

Benefits for the managers:

  • Reduction in transport and equipment downtime
  • Reduction in number of idle resources and accidents
  • Increase in personnel discipline due to listening to and recording conversations
Technical Design

A typical solution for the organisation of a dispatcher radio communications system is shown in the drawing below. This solution uses MOTOTRBO digital radio communications equipment and SmartPTT software as an add-in to perform the functions of scheduling, recording conversations and flexible call and channel switching.

pic_mining_en_14

This solution involves the installation of MOTOTRBO repeaters in the immediate vicinity of the quarries.  One or more repeaters can be set up for each quarry, depending on the number of channels required.

Because of the closeness of the repeater to the quarry, the radio coverage area includes both the actual area of the quarry, right down to the lowest levels, and the surrounding area, the size of which depends on the terrain and the height of the repeater’s antenna suspension. Thus personnel working in the quarry obtain a stable link with one another and the quarry dispatcher and, if necessary, with auxiliary equipment workers or the workers of other quarries.

By activating the call switching option between repeaters for certain users, quarry foremen will be able to stay in touch with the personnel of their own quarry and even those of other quarries within the repeaters’ range.

Quarry repeaters are connected to the SmartPTT server on available data transmission channels.  The server carries out the following functions:

  • Acting as an intermediary between repeaters and SmartPTT dispatcher consoles.
  • Switching channels between the repeaters of different sites
  • Recording conversations and logging system events
  • Transmission of data received from system subscribers third-party applications 

In situations where it is impossible to connect the repeater set up at a remote quarry (repeater 4 in the drawing) to the system via IP channels, an option is used with communication via MOTOTRBO control stations connected to the SmartPTT server. At the same time voice information and data are only transmitted on the radio channel.

SmartPTT dispatch consoles interact with system subscribers via the SmartPTT server. Thanks to the flexible mechanism of multi-channel processing and output of sounds from different sources (channels, subscribers, groups) each console can replace a pool of subscriber radio stations which would have required a dispatcher for the efficient management of several quarries or groups of users.

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