The invention discloses an adaptive traffic signal lamp prompt device, belonging to the voice prompt device technical field, and comprises a signal lamp signal receiving module, a central processing unit, a voice broadcast module and a power supply module, wherein the voice broadcast module comprises an ambient noise input unit, an ambient noise processing unit and a voice output unit; the ambient noise input unit is used for performing analog-digital conversion on ambient noise signals to obtain digit ambient noise signals; the ambient noise processing unit is used for performing anti-phase treatment on the digit ambient noise signals to obtain digital ambient noise signals with same amplitudes and opposite phases and perform gain adjustment; the voice output unit is used for receiving the digit ambient noise signals after gain adjustment, performing digital-analog conversion on the digit ambient noise signals, and overlapping with an original voice file for output. The adaptive traffic signal lamp prompt device is intelligent enough to adjust the play volume of a voice broadcast device in dependence on surrounding ambient noise of signal lamps.
Adaptive traffic signal lamp prompt device
2015-09-09
Patent
Electronic Resource
English
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
European Patent Office | 2022
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