Diagnostics – Robot Mower Boundary Wire Line Detection
This article describes how the robot mower boundary wire detection sensors work, and how they can be diagnosed.
It is part of our series of robot mower diagnostic and troubleshooting posts.
In the test shown below, the boundary wire runs under the artificial turf, about 40cm from the Left Edge, looking down.
The images show the mower gradually being moved to the right, approaching, and crossing over the boundary wire.
As the mower is shifted to the right, the sensors detect the left boundary wire.
In the test shown below, the boundary wire runs under the artificial turf, about 40cm from the Left Edge, looking down.
The images show the mower gradually being moved to the right, approaching, and crossing over the boundary wire.
As the mower is shifted to the right, the sensors detect the left boundary wire.
Initially, both sensors show NUL, indicating that they are in very close proximity to the Left Edge boundary wire.
As the mower is shifted to the right, the RHS sensor detects it (IN), and then both detect it, as the mower keeps being moved to the right.
Finally, the mower recognises that both LHS and RHS sensors detect being IN the mowing area.
As the mower is shifted further to the right, the sensors begin to detect the Right Edge boundary wire.
The RHS sensor begins to detect that it is over the boundary wire (NUL).
Moving the mower further to the right, puts the RHS sensor OUT, while the LHS sensor is still IN.
Further still, and the RHS sensor is still OUT, while the LHS sensor is on top of the boundary wire (NUL).
As the mower continues to be shifted to the right, Both the RHS and LHS sensors detect that it is OUT.
As the mower is shifted further to the right, the sensors detect the Right boundary wire. The RHS sensor begins to detect that it is OUT.
If the above changes are not observed, It could mean that the wire signal is not strong or stable enough.
To adjust the strength of the wire signal, follow the steps for Charging Station Current Adjustment.
To adjust the strength of the wire signal, follow the steps for Charging Station Current Adjustment.
The ability to troubleshoot Robot Mower Boundary Wire Detection is a very helpful part of the robot lawn mower diagnostics. And by having diagnostics for your robotic mower, robotzoo is helping to drive the evolution in garden maintenance.
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