| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device which calls attention to the power generation pulse due to a piezoelectric element as an alarm switch and contributes to danger prevention and disaster prevention and which is of small size and maintenance-free. <P>SOLUTION: The device has a driving part circuit which applies a stress from the outside to a piezoelectric body integrated with a flexible body and generates an electric pulse, and makes a light-emitting element emit light for sounding an alarm by a switch function of the generated electric pulse, or a function to radio-transmit the danger information, and further, has combined a storing means of electric energy obtained from a solar power generation panel to a secondary battery. <P>COPYRIGHT: (C)2012,JPO&INPIT |
