Robotic Garden Tool Following Wires at a Distance Using Multiple Signals
First Claim
1. A method for guiding a robotic garden tool to a predetermined position, the robotic garden tool is provided with at least one sensing means adapted to detect a signal in a wire, the method comprising the steps wherein the robotic garden tool;
- detects a first signal from a first signal source,follows the first signal source at a varying distance to the first signal source, wherein the varying distance is a distance less than or equal to a maximum distance to the first signal source,detects a second signal from a second signal source, andfollows the first signal source at a varying distance from the first signal source that is less than or equal to the maximum distance from the first signal source,wherein the maximum distance to the first signal source is set based at least in part on the detection of the second signal from the second signal source.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a method (300) and a system (100) for guiding a robotic garden tool to a predetermined position. The robotic garden tool includes a control unit (104) and a sensor unit (102) to detect signals. The sensor unit (102) detects a first signal (110) from a first signal source (106) and the robotic garden tool follows the first signal (110) at a varying distance from the first signal source (106) that is less than or equal to a maximum distance to the first signal source, towards the predetermined position. Wherein, the varying distance is a function of the strength of the detected first signal (110). While detecting the first signal (110), the sensor unit may also detect a second signal (112) from a second signal source (108). The robotic garden tool follows the first signal (110) at a varying distance that is less than or equal to the maximum distance to the first signal source, wherein the maximum distance, at least in part, is now set based on the strength of the detected second signal (112), to reach a predetermined position.
-
Citations
20 Claims
-
1. A method for guiding a robotic garden tool to a predetermined position, the robotic garden tool is provided with at least one sensing means adapted to detect a signal in a wire, the method comprising the steps wherein the robotic garden tool;
-
detects a first signal from a first signal source, follows the first signal source at a varying distance to the first signal source, wherein the varying distance is a distance less than or equal to a maximum distance to the first signal source, detects a second signal from a second signal source, and follows the first signal source at a varying distance from the first signal source that is less than or equal to the maximum distance from the first signal source, wherein the maximum distance to the first signal source is set based at least in part on the detection of the second signal from the second signal source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A robotic garden tool guiding system comprising,
first signal source providing a first signal, a second signal source providing a second signal, a robotic garden tool comprising at least one sensing means adapted to detect the first signal and the second signal, wherein the robotic garden tool is adapted to detect the first signal and follow the first signal source towards a predetermined position, at a varying distance to the first signal source wherein the varying distance is less than or equal to a maximum distance to the first signal source, and wherein the maximum distance to the first signal source is set based at least in part on the detection of the second signal from the second signal source.
Specification