Multifunctional rds emergency digital power amplifier amplifier and its control method

Abstract

The invention discloses a multifunctional RDS (Radio Data System) emergency digital power amplifier. The amplifier comprises a front end receiving system and a rear end processing system, wherein the rear end processing system comprises a first FM (Frequency Modulation) high-frequency receiving module, a second FM high-frequency receiving module, a DTMB (Digital Television Terrestrial Multimedia Broadcasting) receiving module, a digital power amplification module, an audio mixing module, a displaying module and an audio module. The invention further discloses a method for controlling the multifunctional RDS emergency digital power amplifier.

Description

technical field [0001] The invention relates to the field of addressable digital broadcasting equipment, in particular to a multifunctional RDS emergency digital power amplifier amplifier and a control method thereof. Background technique [0002] Ordinary receivers and expanders only have the function of level switch, and the receiving sensitivity, stereo signal-to-noise ratio and data transmission performance of traditional ordinary radio chips are not good, and some chips even do not support data transmission functions; many chips or circuits cannot Low-level reception, when the signal is lower than 35dB, the sound will produce serious noise, and the data cannot be received reliably; due to the influence of the structure of the traditional chip, its peripheral circuit is extremely complicated, debugging is troublesome, and the accuracy of components The requirements are particularly high, which seriously affects the performance of the whole machine during production and u...

AI Technical Summary

Problems solved by technology

[0002] Ordinary receivers and expanders only have the function of level switch, and the receiving sensitivity, stereo signal-to-noise ratio and data transmission performance of traditional ordinary radio chips are not good, and some chips even do not support data transmission functions; many chips or circuits cannot Low-level reception, when the signal is lower than 35dB, the sound will produce serious noise, and the data cannot be received reliably; due to the influence of the structure of the traditional chip, its peripheral circuit is extremely complicated, debugging is troublesome, and the accuracy of components The requirements are particularly high, which seriously affects the performance of the whole machine during production and use

[0003] Traditional receivers and expanders use analog debugging and demodulation channels for data transmission, which has low receiving sensitivity and fewer broadcast programs, and cannot realize reliable on / off, cannot prevent the intrusion of illegal signals, and has high working noise; in addition, traditional receivers and expanders also have Unable to achieve remote upgrades, on-site maintenance methods are very single, and the operation steps are cumbersome and unintuitive; based on the above problems, a new generation of digital addressable receivers and amplifiers has emerged as the times require, and plays a pivotal role in emergency intelligent digital broadcasting systems

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