Multifunctional digital ciphering walkie-talkie and implementing method thereof

Abstract

The invention relates to a multifunctional digital encrypted interphone and the realizing method thereof. The interphone comprises a battery voltage regulation unit, a keyboard and an LCD unit, a voice digital-to-analog conversion unit, a wireless data transmission module and a voice analogue interface unit. The interphone further comprises a microcontroller unit, a cipher key memory card unit with an encryption chaotic key equation, and a voice compression and decompression unit. An encrypted communicating method of the multifunctional digital encryption interphone comprises the following steps in the external calls: 1, a voice signal is acquired; 2, the voice signal of the analog quantity is digitized for the preparation of the voice data compression; 3, the voice data are compressed; 4 the compressed voice data are read to complete the acquisition of the assigned chaotic key equation, and the read data is encrypted according to the chaos data; and 5, the encrypted voice data are sent to the wireless digital transmission module for transmission. The chaos theory is introduced in the interphone and the method so as to greatly improving the encryption effect.

Description

technical field [0001] The present invention relates to a digital communication device and its implementation method, specifically, to a device that uses chaos theory and digital wireless transmission methods to encrypt and decrypt voice data and wirelessly transmit and receive data, and has positioning functions and relay-free Multifunctional digital security walkie-talkie. Background technique [0002] At present, in the field of walkie-talkie communication applications, the voice transmission of walkie-talkies mostly uses analog quantities to transmit and receive voice data directly. In this way, the confidentiality of its communication will be greatly affected, and it is easy to be eavesdropped by a third party. The content of the call. At the same time, since the walkie-talkie is a handheld device, its wireless transmission power is at the watt level, so when performing long-distance intercom communication, the intervention of a relay station is required to communicate...

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of walkie-talkie communication applications, the voice transmission of walkie-talkies mostly uses analog quantities to transmit and receive voice data directly. In this way, the confidentiality of its communication will be greatly affected, and it is easy to be eavesdropped by a third party. content of the call

At the same time, since the walkie-talkie is a handheld device, its wireless transmission power is at the watt level, so when performing long-distance intercom communication, the intervention of a relay station is required to communicate normally, which will inevitably reduce the convenience and flexibility of intercom communication

The analog walkie-talkie does not have the GPS positioning function. Under special circumstances, when the operator encounters an emergency, the called party cannot determine its exact location, and thus cannot provide effective assistance to it.

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