Power source selling device and method
A technology of power supply and power conversion, applied in the direction of instruments, payment systems, payment system structures, etc., can solve the problems of inability to meet payment and easy use, high operating costs, and inability to popularize, and achieve low operating costs, low cost, and circuit structure. simple effect
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Embodiment 1
[0053] Such as figure 1 As shown, the power vending device includes: power protection module 1, power conversion and output detection and control module 2, power output panel module 3, user interface module 4, display circuit 5, key circuit 6, secret key and data storage circuit 13 1. Maintain the communication circuit 14 and the processing module 15 .
[0054] The power supply protection module 1 is used to connect an external power supply to realize one or more protections such as overload, overcurrent or leakage, and transmit the power supply to the power conversion and output detection and control module 2 . The output terminal of the power protection module 1 is connected with the power conversion and output detection and control module 2 .
[0055] The power conversion and output detection and control module 2 are used to provide operating power to other module circuits, connect to the processing module 15 and be controlled by it, connect to the power output panel modul...
Embodiment 2
[0069] Such as figure 1 As shown, in addition to the components in the first embodiment, the power vending device also includes: an optical communication module 7 . The optical communication module 7 includes a light emitting circuit 8 and a photosensitive circuit 9 .
[0070] The photosensitive circuit 9 is connected to the processing module 15 , and converts the received optical signal into an electrical signal and transmits it to the processing module 15 .
[0071] The light emitting circuit 8 is directly connected to the output port of the processing module 15 by connecting an LED tube in series with a current limiting resistor. Preferably, the processing module 15 modulates the information to be transmitted into the Morse code, that is, the on and off signals of the light-emitting tube, according to the rules of the Morse code, and sends it to the outside.
[0072] In addition, this embodiment provides a method for selling power supplies, including the following steps: ...
Embodiment 3
[0081] Such as figure 1 As shown, in addition to the components in the first embodiment, the power vending device also includes: an acoustic communication module 10 . The acoustic communication module 10 includes an audio circuit 11 and a sound pickup module 12 . Preferably, the acoustic communication module 10 further includes a dual-tone multi-frequency (DTMF) or frequency shift keying (FSK) integrated circuit for transmitting and receiving.
[0082] The sound pickup module 12 is connected to the processing module 15 , and converts the received acoustic signal into an electrical signal and transmits it to the processing module 15 . The pickup module 12 is provided with a MIC.
[0083] The sound wave circuit 11 is connected with the processing module 15 for sending out audio.
[0084] In addition, this embodiment provides a method for selling power supplies, including the following steps:
[0085] S00a: Plug in the electrical equipment, or press the use button, and the de...
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