Laser range finding apparatus, finding device, storage medium for storing instruction for finding, and laser range finding system

A recording medium storing at least one program configured to be executed by one or more processors of a measurement device allowed to communicate with a laser range finding apparatus and comprising a display unit, the at least one program comprising one or more instructions configured to:

• display, on the display unit, alarm information indicating that an inclination of the laser range finding apparatus is less than a preset value when the inclination of the laser range finding apparatus is less than the preset value;
• display a user interface for operation of the laser range finding apparatus on the display unit;
• and
• select any one of a plurality of measurement modes including a one-way range finding mode, a two-way range finding mode, an area measurement mode, and a volume measurement mode, and calculate a value according to the selected measurement mode based on a distance between the laser range finding apparatus and at least one object measured based on a time at which an output laser beam is received or a phase thereof and the inclination of the laser range finding apparatus according to a user input signal commanding output of the laser beam from at least one of a first laser module or a second laser module included in the laser range finding apparatus according to the selected measurement mode.

A laser range finding apparatus comprising:

• a body;
• a first laser module and a second laser module located at both ends along a vertical axis of the body, the first laser module outputting a first laser beam, the second laser module outputting a second laser beam in a direction opposite to the first laser module;
• a sensor unit included in the body, the sensor unit securing an inclination of the laser range finding apparatus;
• a display unit located on a surface of the body;
• and
• a controller included in the body,
• wherein the controller determines whether the secured inclination is less than a preset value, generates an alarm indicating that the secured inclination is less than the preset value, performs a control operation so that a laser beam is output from at least one of the first laser module or the second laser module, and calculates a distance between the laser range finding apparatus and at least one object based on a time at which the output laser beam is received or a phase change of the output laser beam and the secured inclination.