Article carrying and key pulling reminding device
A reminder device and key technology, which is applied to building structures, special equipment for doors/windows, electromagnetic audible signals, etc., can solve the problems of not having the function of reminding people to pull out the key, not being able to record the prompt sound, and not being comprehensive enough in application , to achieve the effects of diversification of reminder methods, convenience in daily life, and easy promotion
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[0028] A reminder device for item carrying and key extraction, comprising a transmitting device arranged on a door and a receiving device connected with the item or key.
[0029] Such as figure 1 , figure 2 As shown, the transmitting device includes a transmitting signal control module and a magnetic control module, the transmitting signal control module includes a single-chip microcomputer 1, a wireless transmitting module 3 and a battery 4, the magnetic control module includes a magnetic control switch 6 and a magnet 7, and the single-chip microcomputer Ⅰ. The wireless transmitting module 3, the battery 4 and the magnetic control switch 6 are all placed in a housing I1, the battery 4 is a No. connected to the control switch 6, the battery 4 is also connected to the wireless transmission module 3 and the magnetic control switch 6, the single chip microcomputer I is used to receive the signal from the magnetic control switch 6 and send the control signal to the wireless tran...
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