According to the actual demand and operation characteristics of Shengli Open-pit Mine, a digital trunked PMR system of Eastcom eTRA is constructed, which meets the TETRA standard. It includes exchange center, TETRA outdoor integrated base station, repeater, network management system, standard dispatching station, whole network recording system, vehicle-carried station and handset. The base stations are connected to exchange centers via links. The optical fiber repeater is used to fill the blind area. At the same time, ISGW is configured to meet the need of interconnection with the cable telephone system (PSTN).
Customer ValueThe project realizes the upgrading of production dispatching command from analog to digital in Shengli Open-pit Mine, improves the quality of calls and the efficiency of frequency usage, and increases the user capacity and user grouping, and the radio dispatching and command efficiency of the whole mining area. By using the digital trunked PMR system, it can realize high quality wireless voice communication, production operation command and dispatching, whole network recording and other functions in mining area, realize the group dispatching between the production command and dispatching center of the company and the secondary units such as open pit mine, storage and transportation company and maintenance center, and improves the company's production efficiency and safe production capacity.
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