Method and device for calibrating a light smart watch, and light smart watch

A device for calibrating a light smart watch, comprising:

• an FPC soft board provided under a dial, wherein a size of the FPC soft board matches a size of the dial, the FPC soft board is divided into a plurality of partitions, a quantity of the partitions is corresponding to a quantity of watch hands, each partition is divided into a plurality of sub-partitions, each partition is insulated from other partitions, and each sub-partition is insulated from other sub-partitions, such that a watch hand and each sub-partition in a partition corresponding to the watch hand form a capacitor in turn when the watch hand runs;
• a capacitance detecting port for collecting a capacitance signal of each sub-partition;
• a communication unit for wirelessly communicating with a mobile terminal;
• and
• a controller for acquiring the capacitance signal collected by the capacitance detecting port, analyzing a capacitance change amount corresponding to the capacitance signal to determine positions of sub-partitions where the watch hands are currently located, and determining a current time indicated by the watch hands according to the positions of sub-partitions where the watch hands are currently located;
• acquiring a current time of the mobile terminal via the communication unit, and comparing the current time indicated by the watch hands with the current time of the mobile terminal acquired by the communication unit to determine a time error, and/or receiving a time error transmitted back from the mobile terminal via the communication unit;
• and driving the watch hands, according to the determined time error or the time error transmitted back from the mobile terminal, to run in sync with the time of the mobile terminal.

A light smart watch, comprising watch hands, a dial, a gearbox and a PCB hard board, wherein the light smart watch further comprises an FPC soft board, a capacitance detecting port, a communication unit and a controller;

• the gearbox is for driving the watch hands to rotate;
• the PCB hard board is for carrying the gearbox, the capacitance detecting port, the communication unit and the controller;
• the FPC soft board is provided under the dial, wherein a size of the FPC soft board matches a size of the dial, the FPC soft board is divided into a plurality of partitions, a quantity of the partitions is corresponding to a quantity of watch hands, each partition is divided into a plurality of sub-partitions, each partition is insulated from other partitions, and each sub-partition is insulated from other sub-partitions, such that a watch hand and each sub-partition in a partition corresponding to the watch hand form a capacitor in turn when the watch hand runs;
• the capacitance detecting port is for collecting a capacitance signal of each sub-partition;
• the communication unit is for wirelessly communicating with a mobile terminal;
• and
• the controller is for acquiring the capacitance signal collected by the capacitance detecting port, analyzing a capacitance change amount corresponding to the capacitance signal to determine positions of sub-partitions where the watch hands are currently located, and determining a current time indicated by the watch hands according to the positions of sub-partitions where the watch hands are currently located;
• acquiring a current time of the mobile terminal via the communication unit, and comparing the current time indicated by the watch hands with the current time of the mobile terminal acquired by the communication unit to determine a time error, and/or, receiving a time error transmitted back from the mobile terminal via the communication unit;
• and driving the watch hands, according to the determined time error or the time error transmitted back from the mobile terminal, to run in sync with the time of the mobile terminal.