Method of automatic zooming control, apparatus, electronic device, and computer readable storage medium applying the method

An apparatus disposed in a moving device with a zoom radar;

• the apparatus comprises a storage medium and at least one processor;
• the storage medium stores at least one command;
• the at least one commands is implemented by the at least one processor to execute functions;
• the storage medium comprising:
• a parameter acquiring module, configured to acquire a speed of the moving device and a speed change signal;
• a determining module, electrically connected with the parameter acquiring module, and configured to determine a running state of the moving device according to the speed change signal;
• wherein the running state comprises a speed-up state and a slow-down state;
• a calculating module, electrically connected with the parameter acquiring module and configured to calculate a detection distance required by the moving device after a specified time duration according to the speed and the speed change signal;
• and
• a controlling module electrically connected with the calculating module and configured to calculate a target focal length of a zoom radar according to the detection distance and adjust a focal length of the zoom radar to the target focal length over the specified time duration;
• wherein the calculating module comprises a predicting unit and a calculating unit;
• the predicting unit is electrically connected with the parameter acquiring module and the determining module, and is configured to predict a target speed of the moving device after the specified time duration according to the speed;
• the calculating unit is electrically connected with the predicting unit, and is configured to determine whether the target speed is less than or equal to the predefined threshold value in response to that the running state is determined to be the slow-down state;
• in response to that the target speed is less than or equal to the predefined threshold value, the calculating unit is further configured to calculate the detection distance according to the target speed.

An electronic device comprises:

• a storage medium;
• and
• a processor,
• wherein the storage medium stores computer programs, and
• the processor executes the computer programs to implement the following processes:
• acquiring a speed of the moving device and a speed change signal;
• determining a running state of the moving device according to the speed change signal;
• wherein the running state comprises a speed-up state and a slow-down state;
• predicating a target speed after the specified time duration according to the speed and the speed change signal;
• in response to that the running state is determined to be the slow-down state, determining whether the target speed is less than or equal to a predefined threshold value;
• in response to that the target speed is less than or equal to a predefined threshold value, calculating a detection distance after the specified time duration according to the target speed;
• and
• calculating a target focal length of a zoom radar according to the detection distance and adjusting a focal length of the zoom radar to be the target focal length over the specified time duration.

A non-transitory computer readable storage medium, the non-transitory computer readable storage medium stores computer programs, and the computer programs are executed by at least one processor to implement following steps:

• acquiring a speed of the moving device and a speed change signal;
• determining a running state of the moving device according to the speed change signal;
• wherein the running state comprises a speed-up state and a slow-down state;
• predicating a target speed after the specified time duration according to the speed and the speed change signal;
• in response to that the running state is determined to be the slow-down state, determining whether the target speed is less than or equal to a predefined threshold value;
• in response to that the target speed is less than or equal to a predefined threshold value, calculating a detection distance after the specified time duration according to the target speed;
• and
• calculating a target focal length of a zoom radar according to the detection distance and adjusting a focal length of the zoom radar to be the target focal length over the specified time duration.