| 摘要 |
The system for preventing accidental drowning with enhanced safety comprises a device for emitting acoustic signals, carried by a bather, in which an acoustic emitter 10 is associated with an automatic electronic control circuit 11, a device for receiving the acoustic signals connected to an alarm device, the emission device furthermore including a circuit 12 for manual activation of the acoustic emitter 10, which circuit is connected in parallel with the electronic control circuit 11, this manual activation circuit 12 allowing the bather in difficulty to set off the acoustic emitter deliberately. <IMAGE>
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