Our time is characterized by rapid development of radio electronics and its wide penetration into various branches of national economy. Radio methods are successfully used in the search for minerals, in geophysical research, in surveying (radio dial gauges and laser directional indicators), begins the introduction of radio electronics and at mining enterprises too. ...
Ensuring safety of movement of heavy duty open pit dump trucks in poor visibility conditions is a very urgent task, especially in the severe conditions of the Far North. Its solution will increase not only the accident free operation of dump trucks, but also their productivity. For example, at the open pit of the Central mine of the Apatit Combine, where BelAZ dump trucks are used, the number of days with fogs, snowfalls and blizzards reaches 300 per year. According to the current regulations, the movement of dump trucks is prohibited when visibility is less than 20 m. At visibility of 20 50 m, despite a sharp reduction in speed, the movement of dump trucks is not safe.
At mining enterprises of the Soviet Union, radio communication systems PAVS-2M, Nedra-II, Shakhter-II, and others were successfully used. Currently, attempts are being made to create equipment for measuring and transmitting information on the dynamics of production processes via radio communication channels. As is known, the transmission range and reliability of the communication channel under the conditions of mining enterprises are significantly enhanced when metal guides are present in the workings. ...
In the conditions of mining enterprises, the communication channel is usually the weakest link in the information transmission system. Frequent violations of mining, geological and climatic conditions lead to its damage and, consequently, loss of information. Therefore, when measuring in hard to reach places and dangerous conditions, it is necessary to use communication channels that would be minimally affected by changes in external factors (for example, rails, pipes, grounding busbars, trolley wires or specially laid steel cables). ю..
