User Manual

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FIG 13 LIDAR.LAUNCH FILE

（2） The G4 radar coordinates follow the right-hand rule within ROS, with an angle range of [-180,

180]. "angle_min" is the start angle, and "angle_max" is the end angle. The specific scope

needs to be modified according to actual use.

FIG 14 YIDAR G4 COORDINATE ANGLE DEFINITION

USE CAUTION

Ambient temperature

When the working environment temperature of G4 is too high or too low, it will affect the accuracy

of the distance measuring system. It may also damage the structure of the scanning system and

reduce the life of the G4 lidar. Avoid use in high temperature (>50 degrees Celsius) and low

temperature (<0 degrees Celsius) conditions.

Ambient lighting

The ideal working environment for the G4 is indoor, indoor lighting (including no light) will not

affect the G4 work. However, avoid using a strong light source (such as a high-power laser) to

directly illuminate the G4's vision system.

If you need to use it outdoors, please avoid that the G4's vision system is directly facing the sun. This

may cause permanent damage to the vision system's sensor chip, thus invalidating the distance

measurement.