Intelligent identification communication interface device and intelligent device

By introducing a current limiting module and an intelligent processing unit into the smart device interface, the short circuit problem caused by the large current of the smart device interface is solved, and normal communication and power supply of the device are realized.

CN115292224BActive Publication Date: 2025-04-18SHENZHEN LEMU COMM CO LTD
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Patent Information

Application Number
CN202210959804.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-11
Publication Date
2025-04-18
Estimated Expiration
2042-08-11

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Abstract

A smart identification communication interface device and a smart device, comprising an external interface and a processing unit; the external interface comprises: an interrupt contact, used to generate a valid access signal when an external device is connected to the external interface; a current limiting module, used to connect the interrupt contact to reduce the current of the interrupt contact; a power supply contact, used to supply power to the connected external device so that the connected external device is in a working state; a voltage acquisition contact, used to acquire a divided voltage of the connected external device; a communication contact corresponding to at least one communication mode, used to communicate with the connected external device; the processing unit is used to determine that an external device is connected when the interrupt contact receives a valid access signal; when an external device is connected, the processing unit switches the power supply contact to an on state; determines the communication mode of the connected external device through the divided voltage acquired by the voltage acquisition contact, determines the communication contact according to the communication mode, and switches the determined communication contact to an on state.
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Citation Information

Patent Citations

  • Adaptor, card machine communication system and method

    CN106229767A

  • Identification circuit, system control circuit, access circuit and interface device

    CN114077565A