The present invention discloses an automatic fault detection
system and method for an outdoor column sound. The
system comprises: a column sound and a
server; wherein the column sound includes a main control
chip, a power
amplifier module, a speaker unit, and a detection circuit; the
server is configured to send a
digital signal to the column sound via a network; the main control
chip is configured to decode the
digital signal into an
audio signal; the main control
chip is configured to determine whether the main control chip, the power
amplifier module, and the speaker unit are faulty based on the detection
signal transmitted by the detection circuit, and the judgment result is transmitted to the
server via the network; the power
amplifier module is configured to amplify the
audio signal to obtain an amplified
signal; the speaker unit is configured to convert the amplified
signal into a sound signal and play it; and the detection circuit is configured to collect and detect the
audio signal, the amplified signal, and the sound signal, and transmit the obtained detection signal to the main control chip. The present invention improves the fault detection efficiency of outdoor column sound and can be widely used in the field of column sound fault detection.