Method and system for acquiring operating parameters of photographic lens

A method for acquiring operating parameters of a photographic lens implemented on a system for acquiring an operating parameter of the photographic lens, the system comprises:

• a control circuit and a storage unit that are configured in the photographic lens, wherein the control circuit comprises a processing unit and a focusing ring position sensor, a zoom ring position sensor, an aperture ring position sensor, an accelerometer, a gyro sensor, a communication interface, a power connector that are connected to the processing unit;
• the control circuit acquires the operating parameter of the photographic lens by using the focusing ring position sensor, the zoom ring position sensor, the aperture ring position sensor, the accelerometer and the gyro sensor, performs data encapsulation on the operating parameter, and writes an encapsulated parameter into the storage unit;
• and the control circuit is further connected to a camera or an external data reading device by using the communication interface, to output the operating parameter after the data encapsulation in real time;
• the method comprising:
• acquiring in the photographic lens, by the control circuit, the operating parameters of the photographic lens;
• waiting for completion of data acquisition which involves data of the focusing ring position sensor, data of the zoom ring position sensor, data of the aperture ring position sensor, data of the accelerometer and data of the gyro sensor;
• performing data encapsulation, by the control circuit, on the operating parameters of the photographic lens, writing the encapsulated parameter into a storage unit;
• waiting for a next transmission according to a transmission rate after the data encapsulation;
• transmitting the encapsulated parameter to the camera or an external data reading device in real time through the communication interface;
• and returning to perform the step of waiting for completion of data acquisition after transmission of the encapsulated parameter is finished;
• wherein the acquiring, by a control circuit, an operating parameter of a photographic lens at least comprises:
• (1) obtaining, by the control circuit, electrical signals corresponding to current positions of a focusing ring, a zoom ring, and an aperture ring respectively during rotations, to convert the electrical signals into optical parameters of a focus, a zoom, and an aperture;
• and
• (2) obtaining, by the control circuit, an electrical signal corresponding to a current pose of the photographic lens when the pose of the photographic lens changes, to convert the electrical signal into motion parameters comprising but not limited to a position parameter and a posture parameter.