Intelligent management system of active loudspeakers

Abstract

The invention discloses an intelligent management system of active loudspeakers. The intelligent management system comprises an analog signal input interface unit, a digital signal processor (DSP), a power amplifier unit, a voltage detection unit, a temperature detection and fan control unit, a digital signal input interface unit, a root mean square (RMS) and loudspeaker impedance detection unit and a network interface unit, wherein the analog signal input interface unit is used for converting balance transmitted analog audio signals into unbalance analog audio signals; the DSP is used for performing EQ adjustment, time delay, amplitude limit and frequency division operations on the analog audio signals input by the analog signal input interface unit and implementing automatic switching between the analog audio signals and digital audio signals; the power amplifier unit is used for driving a plurality of active loudspeakers to produce sound; the voltage detection unit is used for detecting the power supply voltage of the power supply input end of the power amplifier unit; the temperature detection and fan control unit is used for detecting the temperature in an active sound box and automatically adjusting the revolution speed of a fan in the sound box according to the detected temperature value; the digital signal input interface unit is used for converting standard Audio Engineering Society / European Broadcast Union (AES / EBU) digital audio signals into signals of Inter-IC sound (I2S) format; the RMS and loudspeaker impedance detection unit is used for detecting the RMS value of the output end of the power amplifier unit and the impedance values of the active loudspeakers; and transmission control protocol / Internet protocol data are transceived between the network interface unit and the Internet.

Description

technical field [0001] The present invention relates to an active loudspeaker management system. Specifically, it relates to a system that realizes automatic switching of analog / digital input signals, automatic overvoltage protection, and automatic adjustment of the cooling fan speed according to the temperature value, thereby improving the working stability of the active loudspeaker. Revolutionary active speaker intelligent management system. Background technique [0002] Active speakers need to be powered by mains power. In actual use, the mains may have large voltage fluctuations due to grid instability, which can easily cause active speakers to work unstable or even be damaged by overvoltage; in addition, some The heat loss of the power amplifier in the source speaker will cause the temperature inside the box to rise, which in turn will affect the stability of the speaker's work; also, in large-scale live performances, for the sake of performance safety, analog and digit...

AI Technical Summary

Problems solved by technology

[0002] Active speakers need to be powered by mains power. In actual use, the mains may have large voltage fluctuations due to grid instability, which can easily cause active speakers to work unstable or even be damaged by overvoltage; in addition, some The heat loss of the power amplifier in the source speaker will cause the temperature inside the box to rise, which in turn will affect the stability of the speaker's work; also, in large-scale live performances, for the sake of performance safety, analog and digital audio are usually used System backup solution, and currently active speakers generally only provide analog input interfaces, but not digital interfaces, so current active speakers cannot meet the requirements for audio backup; moreover, speaker maintenance personnel need to regularly test and monitor all speakers in the venue Maintenance to ensure that the performance can be performed normally. If the active speaker is not working, it is necessary to check the power supply status, signal link and signal level of the speaker one by one to determine the reason why the active speaker does not produce sound. Troubleshooting large venues with multiple powered loudspeakers can take a lot of time

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