Method for Controlling Movement of Cursor on Electronic Device, Mobile Device, and Electronic Device

A method for controlling movement of a cursor on an electronic device, wherein the method is applied to an electronic device;

• the electronic device comprises a display screen and at least two UWB base stations;
• the display screen comprises a first edge, a second edge, a third edge, and a fourth edge, the first edge is parallel to the second edge, the third edge is parallel to the fourth edge, the first edge and the second edge are parallel to a first direction, the third edge and the fourth edge are parallel to a second direction, the first direction is perpendicular to the second direction, and the display screen displays a cursor;
• the cursor moves on the display screen with a mobile device;
• the at least two UWB base stations are distributed at different positions at front or back of the display screen;
• all or a part of a perpendicular projection that is of each of the at least two UWB base stations and that is on the display screen is located on the display screen;
• and the method comprises:
• receiving a cursor indication message of the mobile device, wherein the cursor indication message indicates a movement direction of the cursor on the display screen;
• and
• when the cursor moves to the third edge or the fourth edge, and an intersection point between a straight line in a direction to which the mobile device points and a plane on which the display screen is located is not between a straight line on which the third edge lies and a straight line on which the fourth edge lies, the cursor no longer moves in the first direction with the mobile device.

A method for controlling movement of a cursor on an electronic device, wherein the method is applied to a control system, and the control system comprises a mobile device and an electronic device;

• the electronic device comprises a display screen and at least two UWB base stations;
• the display screen comprises a first edge, a second edge, a third edge, and a fourth edge, the-first edge is parallel to the second edge, the third edge is parallel to the fourth edge, the first edge and the second edge are parallel to a first direction, the third edge and the fourth edge are parallel to a second direction, the first direction is perpendicular to the second direction, and the display screen displays a cursor;
• the cursor moves on the display screen with the mobile device;
• the at least two UWB base stations are distributed at different positions at front or back of the display screen;
• all or a part of a perpendicular projection that is of each of the at least two UWBs and that is on the display screen is located on the display screen;
• the mobile device comprises a UWB tag and a first direction sensor;
• and the method comprises:
• sending, by the mobile device, a cursor indication message to the electronic device, wherein the cursor indication message indicates a movement direction of the cursor on the display screen of the electronic device;
• receiving, by the electronic device, the cursor indication message of the mobile device;
• sending, by the electronic device, distance measurement messages to the mobile device respectively through the at least two USB base stations;
• receiving, by the mobile device through the UWB tag, the distance measurement messages respectively sent by the at least two UWB base stations;
• sending, by the mobile device, distance measurement response messages respectively to the at least two UWB base stations through the UWB tag in response to the distance measurement messages;
• receiving, by the electronic device respectively through the at least two UWB base stations, the distance measurement response messages of the mobile device for the distance measurement messages;
• determining, by the electronic device in response to the distance measurement response messages, a distance between each of the at least two USB base stations and the mobile device, a distance between every two of the at least two UWB base stations, a first included angle, and a second included angle, wherein the first included angle is an included angle between a perpendicular from the mobile device to the plane on which the display screen is located and a connecting line between the mobile device and the third edge, and the second included angle is an included angle between the perpendicular from the mobile device to the plane on which the display screen is located and a connecting line between the mobile device and the fourth edge;
• determining, by the electronic device, an included angle, wherein the included angle is an included angle between a straight line in a direction to which the mobile device points and the perpendicular from the mobile device to a plane on which the display screen is located;
• determining, by the electronic device, a yaw angle and a roll angle based on the included angle, wherein the roll angle represents an included angle that is in the first direction and that is between the straight line in the direction to which the mobile device points and the perpendicular from the mobile device to the plane on which the display screen is located, and the yaw angle represents an included angle that is in the second direction and that is between the straight line in the direction to which the mobile device points and the perpendicular from the mobile device to the plane on which the display screen is located;
• and
• after the roll angle is greater than the first included angle, the cursor no longer moves in the first direction with the mobile device.