Information reading method, device, cable, charging system, and computer storage medium

A cable, connected to a first device, the cable comprising a communication control chip, wherein:

• the communication control chip comprises a power supply terminal and a data signal terminal, the power supply terminal being connected to a first-type data signal terminal in a first interface of the first device, and the data signal terminal being connected to a second-type data signal terminal in the first interface of the first device;
• and
• the communication control chip is configured to control itself to be powered up, in response to receiving, via the power supply terminal, a first voltage outputted by the first-type data signal terminal,
• wherein a device control chip of the first device is configured to control the first-type data signal terminal to be in an input state;
• and the first-type data signal terminal is further configured to stop, when in the input state, supplying the first voltage to the power supply terminal, to power down the communication control chip,
• wherein the first device is connected to a second device via the cable, and wherein the device control chip of the first device is further configured to control, while controlling the first-type data signal terminal to be in the input state, the first-type data signal terminal to implement a transmission of a data signal with the second device;
• and control the second-type data signal terminal to implement a transmission of a data signal with the second device, wherein:
• the device control chip is further configured to transmit, via the first-type data signal terminal and/or the second-type data signal terminal, a first mode control instruction to the second device before controlling the first-type data signal terminal to be in the first output state, the first mode control instruction being used to instruct the second device to enter an information reading mode;
• and the device control chip is further configured to receive, via the first-type data signal terminal and/or the second-type data signal terminal, a first response message returned by the second device based on the first mode control instruction, enter an information reading mode based on the first response message, and control, when in the information reading mode, the first-type data signal terminal to be in the first output state;
• or
• the device control chip is further configured to receive, via the first-type data signal terminal and/or the second-type data signal terminal, a second mode control instruction transmitted by the second device;
• and enter an information reading mode based on the second mode control instruction, and control, when in the information reading mode, the first-type data signal terminal to be in the first output state, the second mode control instruction being used to instruct the first device to enter the information reading mode.

A charging system, comprising:

• a chargeable device;
• a power supply device;
• and
• a cable, wherein:
• the chargeable device comprises a charging control chip and a charging interface;
• the cable comprises a communication control chip;
• the power supply device comprises a power supply control chip and a power supply interface;
• the charging interface and the power supply interface each comprise a first-type data signal terminal and a second-type data signal terminal;
• the communication control chip has a power supply terminal connected to the first-type data signal terminal of the charging interface and the first-type data signal terminal of the power supply interface, and has a data signal terminal connected to the second-type data signal terminal of the charging interface and the second-type data signal terminal of the power supply interface;
• the chargeable device is configured to provide a first voltage to the power supply terminal via the first-type data signal terminal of the charging interface while controlling, via the charging control chip, the first-type data signal terminal of the charging interface to be in a first output state, to supply power to the communication control chip;
• and/or
• the power supply device is configured to provide a first voltage to the power supply terminal via the first-type data signal terminal of the power supply interface while controlling, by means of the power supply control chip, the first-type data signal terminal of the power supply interface to be in a first output state, to supply power to the communication control chip,
• wherein the chargeable device is connected to the supply device via the cable, and wherein the chargeable device controls, by the charging control chip, the first-type data signal terminal of the charging interface to be in an input state to implement a transmission of the data signal via the first-type data signal terminal of the charging interface, and the power supply device controls, by the power supply control chip, the first-type data signal terminal of the power supply interface to be in the input state to implement transmission of date signals between the chargeable device and the power supply device via the first-type data signal terminal of the charging interface and the first-type data signal terminal of the power supply interface and power down the communication control chip, wherein:
• the charging control chip is configured to transmit, via the first-type data signal terminal of the charging interface and/or the second-type data signal terminal of the charging interface, a first mode control instruction to the power supply device before controlling the first-type data signal terminal of the charging interface to be in the first output state, the first mode control instruction being used to instruct the power supply device to enter an information reading mode;
• and the charging control chip is further configured to receive, via the first-type data signal terminal of the charging interface and/or the second-type data signal terminal of the charging interface, a first response message returned by the power supply device based on the first mode control instruction, enter an information reading mode based on the first response message, and control, when in the information reading mode, the first-type data signal terminal of the charging interface to be in the first output state;
• or
• the charging control chip is further configured to receive, via the first-type data signal terminal of the charging interface and/or the second-type data signal terminal of the charging interface, a second mode control instruction transmitted by the power supply device;
• and enter an information reading mode based on the second mode control instruction, and control, when in the information reading mode, the first-type data signal terminal of the chargeable interface to be in the first output state, the second mode control instruction being used to instruct the charging device to enter the information reading mode.