Indoor distance measurement method

An indoor distance measurement method comprising:

• acquiring a horizontal distance between a camera on an augmented reality device and a target object by using a direction sensor provided on the augmented reality device;
• acquiring a height of the target object according to the horizontal distance between the camera and the target object by using the direction sensor provided on the augmented reality device;
• and
• superimposing and displaying the horizontal distance and the height of the target object on a real-world scene displayed by the augmented reality device;
• wherein before the step of acquiring a height of the target object according to the horizontal distance between the camera and the target object by using the direction sensor provided on the augmented reality device, the method further comprises:
• selecting an intersection of the bottom of the target object and the ground or an intersection of the extension line of the target object and the ground, selecting a point at the top of the target object, and selecting a point at the bottom of the target object;
• and
• marking these selected points respectively by directing the camera to these selected points for a period of time exceeding a preset time.