Emergency radio communication method based on public telephone network

Abstract

In an emergency radio communication method based on a public telephone network, a public telephone radio extension module comprises a radio access point (AP), a multiplexer, a modem and a divider; a disaster relief information issuing platform comprises a signal receiving module, a data processing module, a message sending module and a message receiving module; and a power module comprises an electronic switch and a storage battery device. Victims can access to the radio AP through the WiFI radio modes of mobile terminals; data information of a plurality of users is transmitted on a fixed telecommunication network by sharing the same telephone line with the public telephones under control of the modem and the multiplexer, so that the emergency communication demands of the users are satisfied; a telecommunication sector transmits the concentrated governmental emergency disaster relief information to public telephone network points through the fixed telecommunication network, and then the concentrated governmental emergency disaster relief information is directly displayed on an information screen after being analyzed and processed by the disaster relief information issuing platform; or, the radio AP broadcasts disaster resistant rescue emergency messages to all the users within the coverage area of the radio AP.

Description

technical field [0001] According to the emergency communication requirements after sudden major natural disasters, the present invention uses the fixed public telephone communication network to construct a wireless local area network through modems and wireless access point APs at widely deployed public telephone network points, and provides fast and convenient short-distance communication for disaster-stricken users. Wireless access, providing a communication expansion solution of fixed telephone network combined with wireless technology for emergency communication after major natural disasters. It belongs to the field of communication technology. Background technique [0002] In recent years, sudden major natural disasters have occurred frequently. At 2:28 pm on May 12, 2008, a strong earthquake measuring 8.0 on the Richter scale occurred in Sichuan Province, China, with the epicenter located in Wenchuan County, Aba Prefecture. The earthquake caused heavy casualties. Acc...

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Problems solved by technology

Many public telephones are out of use due to lack of regular maintenance and people's carelessness in using them

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