Portable terrane communication machine

A communicator and portable technology, applied in the direction of electrical components, transmission systems, and mid-position power feeding between antenna endpoints, can solve the problems of communication cable damage, inability to realize voice communication, difficulty in guaranteeing communication signal transmission and reception, etc.
CN101345591AActive Publication Date: 2009-01-14XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
Publication Date
2009-01-14

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Abstract

The invention relates to a portable terrane communicator for down-hole coal mine. Now traditional wired communication technology is still used in down-hole. When heavy accident occurs under coal mine, communication system suffers heavy destruction and can not transmit information in time, which results in loss of best rescuing opportunity, human life and possession. The inventive portable terrane communicator using terrane as transmitting medium is composed of DSP modulation and demodulation circuit, CPU controller, vocoder, receiving and transmitting converter, A / D conversion circuit, amplification circuit, microphone, speaker, register, D / A conversion circuit, receiving and amplification circuit, smooth filter circuit, preamplifier circuit, transmitting amplification circuit, antenna. In the invention computer hardware technology and electronic element circuit technology are combined to change communication technology of using terrane as transmission medium into reality.
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Description

technical field

[0001] The invention belongs to the technical field of communication equipment, and in particular relates to a portable rock formation communication machine used in underground coal mines. technical background

[0002] In the current underground communication of coal mines, the traditional wired communication technology is still used. This communication method can timely, truly and effectively reflect the safety of personnel, production status, and equipment operation in a stable and normal production environment. It plays an active role in the safe production of coal mines. However, when a major accident occurs in a coal mine, the communication system is severely damaged, and information cannot be transmitted to the ground in time, which often makes the ground unable to grasp the real situation of the disaster in time, and loses the best time for rescue, which brings great harm to people's lives and property. Huge losses have been incurred, and the lessons ...

Claims

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