Writing device assembly and writing content identification method

A writing content identification method, applied to a processor in a writing apparatus of a writing device assembly, the method comprising:

• continuously acquiring code point values returned by a optical identification unit to obtain a code point value sequence, wherein the code point values are obtained by analyzing code point images captured by the optical identification unit on code points in a writing medium;
• performing code point type identification on the code point values, and in response to a code point type indicated by the code point values being a coordinate code, performing coordinate identification on the code point value sequence to obtain a coordinate sequence, and drawing a writing trace according to the coordinate sequence;
• and
• calling a preset trace identification model to identify the writing trace to obtain writing content;
• wherein the writing device assembly comprises the writing apparatus and the writing medium, the writing apparatus comprises a pressure sensing unit, the optical identification unit and the processor, and the writing medium has the code points printed thereon, wherein:
• the pressure sensing unit is configured to generate a pressure sensing signal in response to sensing that the writing apparatus contacts the writing medium;
• the optical identification unit is configured to, in response to that the pressure sensing unit generates the pressure sensing signal, capture a code point image of the code points in the writing medium, analyze the code point image to obtain a code point value, and send the code point value to the processor;
• and
• the processor is configured to identify a code point type of the code point value, and in response to the code point type being identified to be the coordinate code, perform a coordinate code analysis on the code point value, determine the writing trace according to analysis results, and perform content identification on the writing trace to obtain the writing content;
• wherein the pressure sensing unit comprises a writing component and a sensing component;
• the writing component comprises a first end that contacts the writing medium during writing and a second end that is opposite to the first end;
• and the second end of the writing component is provided with a conductive silicone pad and a first magnetic device;
• the sensing component comprises a sensing terminal disposed opposite to the second end of the writing component, the sensing terminal is provided with a second magnetic device and unconnected first and second conductors, and the first magnetic device and the second magnetic device are disposed in magnetic repulsion;
• in response to the first end of the writing component being not in contact with the writing medium, the conductive silicone pad and the sensing terminal are separated under repulsion between the first magnetic device and the second magnetic device, the first conductor and the second conductor are not in conduction, so that no pressure sensing signal is generated;
• and in response to the first end of the writing component being in contact with the writing medium, and a contact pressure between the writing component and the writing medium being greater than the repulsion between the first magnetic device and the second magnetic device, the conductive silicone pad is in contact with the sensing terminal, so that the first conductor and the second conductor are in conduction to generate the pressure sensing signal;
• or
• the writing component comprises a first end that contacts the writing medium during writing and a second end that is opposite to the first end, and the writing component is provided with a sliding block at the second end of the writing component;
• the sensing component comprises a pressure sensor disposed opposite to the second end of the writing component;
• in response to the first end of the writing component being not in contact with the writing medium, the sliding block slides downward due to a gravity of the writing component, so that the sliding block is separated from the pressure sensor, and the pressure sensor does not generate the pressure sensing signal;
• and in response to the first end of the writing component being in contact with the writing medium, and a contact pressure between the writing component and the writing medium being greater than the gravity of the writing component, the sliding block moves upward to be in contact with the pressure sensor, so that the pressure sensor generates the pressure sensing signal.