Piezoelectric doorbell
A doorbell and piezoelectric technology, applied in the direction of electromagnetic and audible signals, can solve problems such as the inability to effectively identify user identities, and achieve the effect of improving user experience
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[0029] The implementation mode of the present invention is illustrated by specific specific examples below, and those who are familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this description. Obviously, the described embodiments are a part of the present invention. , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0030] Embodiment 1 of the present invention provides a piezoelectric doorbell, specifically as figure 1 As shown, the piezoelectric doorbell includes: at least two piezoelectric elements 10 , a switch 20 , a processor 30 and a speaker device 40 , and each piezoelectric element 10 is installed at a different preset position of the door. Specific as figure 2 as shown, figure 2 It is shown tha...
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