A transmission device and transmission method based on short-wave communication

Abstract

The invention discloses a transmission device based on short wave communication. The transmission device comprises a wired fax transceiver and a short wave fax transceiver. The wired fax transceiver comprises a PSTN user interface circuit and an Ethernet interface, the PSTN user interface circuit is connected with a modem, a DTMF signal receiver and an analog signal processing, the Ethernet interface, the modem and the DTMF signal receiver are connected with a first ARM single chip microcomputer, the short wave fax transceiver comprises a short wave radio, the short wave radio is connected with a short wave modem and an analog signal access circuit, the short wave modem is connected with a second ARM single chip microcomputer, the analog signal access circuit is connected with an analog signal processing circuit, the short wave fax transceiver further comprises an Ethernet concentrator connected with the Ethernet interface, and the short wave radio is also connected with a short wave antenna. Under the condition of not changing the ordinary fax machine, faxes are received and sent and computer data communication and voice calls are achieved by means of the short wave communicationmode. The invention further discloses a signal transmission method using the device.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a transmission device based on short-wave communication, and also relates to a transmission method using the above-mentioned device. Background technique [0002] Fax is intuitive and convenient as a means of communication, which is an indispensable way of information transmission in modern office. In recent years, the emergence of new information dissemination methods such as email, WeChat, QQ, and Weibo has made it very convenient for people to communicate. However, the facsimile machine is easy to operate and transmits information in paper form, so that the information transmission is not only intuitive, but also well documented. In business communication, fax documents can be recognized as valid vouchers. Therefore, the fax service plays an irreplaceable role and is widely used in business contacts. [0003] In daily life and work, the telephone network, the In...

AI Technical Summary

Problems solved by technology

It has advantages that other communication systems do not have: short-wave is the only long-distance communication method that is not restricted by network hubs and active repeaters. Will be attacked; or in the ocean, the base station cannot be deployed

Regardless of the communication method, its invulnerability and autonomous communication capabilities are incomparable with shortwave

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