Multi-system multi-signal mixed transmission full hot backup flameproof bidirectional amplifier
A bidirectional amplifier and hybrid transmission technology, applied in the direction of bidirectional amplifiers, etc., can solve the problems of external communication anytime and anywhere, and achieve the effect of high reliability
Active Publication Date: 2018-04-06
GUANGZHOU EYECOM TELECOMM +1
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Problems solved by technology
[0004] Aiming at the characteristics of the prior art, the purpose of the present invention is to provide a multi-system multi-signal mixed transmission full-backup flameproof bidirectional amplifier, which solves the problem of dangerous environments containing flammable and explosive gases underground, confined spaces, and underwater environments. It can not communicate with the outside anytime and anywhere in special dangerous occasions, and it also solves the problem that when multiple devices are covered, there is no need to add additional power network facilities, which not only saves a lot of costs, but also brings great benefits to the construction personnel. convenience
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[0022] Glossary:
[0023] DMR is the abbreviation of Digital Mobile Radio. The Digital Mobile Radio Standard (DMR) is a digital radio standard specially formulated by the European Telecommunications Standards Institute (ETSI) for Professional Mobile Radio (PMR) users.
[0024] TETRA (Trans European Trunked Radio – Pan-European trunking radio, now changed to Terrestrial Trunked Radio – land trunking radio) digital trunking communication system is a professional mobile communication system based on digital time division multiple access (TDMA) technology, the system is ETSI ( European Telecommunications Standards Association) is an open system designed and formulated to meet the needs of professional departments in European countries for mobile communications.
[0025] FSK (Frequency-shift keying)-Frequency shift keying is to use the frequency change of the carrier to transmit digital information. It is a digital modulation technology that uses the discrete value characteristics...
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The invention discloses a multi-system and multi-signal mixed transmission full-heating backup explosion-proof bidirectional amplifier, which comprises an explosion-proof cabinet provided with an input end and an output end, and a first bias tree connected to the input end is arranged in the explosion-proof cabinet unit, the second bias tree unit connected to the output terminal, the coupling unit connected to the first bias tree unit, the first multi-system combiner connected to the coupling unit, the second bias tree unit connected to the second A multi-system combiner, a Tetra link and a DMR link placed between the multi-system combiners. The present invention solves the problem of inability to communicate with the outside anytime and anywhere in special dangerous places such as underground dangerous environments containing flammable and explosive gases, confined spaces, and underwater environments. Advanced power network facilities not only save a lot of cost, but also bring great convenience to the construction personnel.
Description
technical field [0001] The invention relates to a signal amplifying device, in particular to a multi-system and multi-signal mixed transmission full hot backup flameproof bidirectional amplifier. Background technique [0002] The current underground space has been gradually fully developed and utilized, and major cities are building subways and large-scale underground tunnel projects. Due to the dangerous and harsh environment of the underground space, the infrastructure of power supply and signal coverage is incomplete, and it is difficult to realize, resulting in the inability to communicate with the outside of the space environment at any time, which seriously hinders the dispatching and command of personnel in dangerous confined spaces, and the emergency response of pre-disaster and post-disaster rescue. ability. As with mines or oil fields, the integrated application of temporary or permanent multi-system communication engineering during and after construction has been...
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IPC IPC(8): H03F3/62
Inventor 关淇陈志聪潘建民李辉琼
Owner GUANGZHOU EYECOM TELECOMM