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Multi-frequency wireless digital-analog compatible mobile communication device and communication system thereof

A mobile communication device and mobile communication system technology, applied in transmission systems, electrical components, etc., can solve problems such as personal injury and death of operators, and achieve the effects of convenient use and maintenance, optimized voice reception, and good call quality.

Inactive Publication Date: 2013-02-13
泉州市铁通电子设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the on-site protection is not paid attention to or the on-site protection is improper, the operators on the line cannot predict the coming vehicles and get off the road in time to avoid the vehicles, which may lead to personal injury and death accidents of the operators.

Method used

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  • Multi-frequency wireless digital-analog compatible mobile communication device and communication system thereof
  • Multi-frequency wireless digital-analog compatible mobile communication device and communication system thereof
  • Multi-frequency wireless digital-analog compatible mobile communication device and communication system thereof

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Embodiment Construction

[0037] The present invention will be further described below through specific embodiments.

[0038] refer to figure 1, a multi-frequency wireless digital-analog compatible mobile communication device, including a voice collection device 1, a voice playback device 2, a power supply device 3, a key device 4, a display device 5, a storage device 6, a radio frequency device 7 and the above-mentioned voice collection device 1, voice A central processing unit 8 connected to a playback device 2, a power supply unit 3, a button unit 4, a display unit 5, a storage device 6 and a radio frequency device 7, the central processing unit 8 includes an audio power amplifier circuit 11 and a baseband chip 12, and the audio power amplifier circuit 11 and Voice collection device 1 is connected with voice playback device 2 for amplifying the audio signal, and baseband chip 12 is connected with radio frequency device 7 and audio power amplifier circuit 11 for carrying out AD sampling, voice proces...

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PUM

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Abstract

The invention discloses a multi-frequency wireless digital-analog compatible mobile communication device which comprises a voice acquisition device, a voice play device, a power device, a key device, a display device, a storage device, a radio-frequency device and a central processing device connected with the voice acquisition device, the voice play device, the power device, the key device, the display device, the storage device and the radio-frequency device. The device disclosed by the invention adopts a wireless digital communication special chip as a core and can realize the functions of digital voice communication, editing, short message receiving and sending and the like through a voice signal digital processing module, a channel coding / decoding function module, a radio-frequency device and interface design. The digital communication special chip has a high integration level and a simple structure, and is low in cost and convenient to manufacture; and with only one external storage chip, a radio-frequency device and corresponding peripheral application circuit, the digital communication function can be realized.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a multi-frequency wireless digital-analog compatible mobile communication device and a communication system in the field of railway communication. Background technique [0002] The Ministry of Industry and Information Technology of my country issued Document No. 666, which indicates that analog wireless intercom will completely withdraw from the domestic market in 2016, and digital wireless intercom will replace analog wireless intercom. Digital wireless intercom is a communication method that digitizes analog signals, uses digital coding and digital modulation, and uses digital signal processing methods to optimize communication. Compared with analog wireless intercom, digital wireless intercom has many advantages. First, it can make better use of spectrum resources. Similar to cellular digital technology, digital wireless intercom can load more users on a designated channe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/40H04B1/3827
Inventor 洪杰星马宏平黄金兴洪杰辉
Owner 泉州市铁通电子设备有限公司
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