Intercom system for coal mining

Abstract

The invention belongs to the technical field of talkback communication, and particularly relates to an intercom system for coal mining, which comprises a base station and an interphone; and the base station and the interphone establish data transmission connection; the base station comprises a base station outer shell. A panel is arranged on the front side of the base station outer shell. A base station battery is arranged on the front wall of the panel; a base station external power indicator lamp, a base station switch and a base station battery under-voltage indicator lamp are sequentiallyarranged on the lower middle side of the panel from left to right; a debugging interface, an external power interface, a transfer station antenna interface and a link antenna interface are arranged onthe rear side wall of the base station outer shell. The interphone comprises an interphone outer shell; an antenna is arranged on the left side of the top of the interphone outer shell, and a loudspeaker is arranged on the upper side of the front wall of the interphone outer shell.. The intercom system has the advantages that the intercom system is convenient to carry and quick in network distribution, wired circuits and external power sources can be omitted, and the intercom system can be independently, quickly and effectively in communication connection with other wireless communication systems and can timely and conveniently cooperate with the other wireless communication systems.

Description

technical field [0001] The invention relates to the technical field of intercom communication, in particular to an intercom system for coal exploitation. Background technique [0002] With the improvement and development of coal mining equipment and its auxiliary equipment, mine automation and informatization have become elements of the development of coal enterprises, and coal mine wireless communication systems have become an important part of mine informatization and safety production management. At present, the wireless communication systems used in coal mines in my country include early leak communication systems, carrier communication systems, and PHS wireless communication systems developed in recent years. These systems have their own advantages and disadvantages in terms of channel transmission characteristics, technology upgrades, and cost performance. . [0003] The specific defects are as follows: Explosion-proof underground telephone: telephone line is required,...

AI Technical Summary

Problems solved by technology

[0003] The specific defects are as follows: Explosion-proof underground telephone: telephone line is required, which is wired. 3G communication needs to be switched by the center, which needs system support. The base station needs to be wired to the center. The visible range of a single base station is small; leakage communication requires leakage cables, and the sound quality is poor. , the wireless transmission distance is short; the sound quality of the analog walkie-talkie is poor, and the fully mechanized mining face cannot be used; the sound quality of the digital machine is better, and the voice of the fully mechanized mining face is clear, 400+MHz, and the distance is relatively long, but it still cannot meet the needs; The WiFi distance in the roadway is shorter, which cannot meet the needs of complex environments; PHS also needs central switching, and the deployed base stations also need wired connections to the center

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