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US 9,062,827 B2Granted
Proximity based thermal profiling for a power tool
AssigneeRobert Bosch GmbH
InventorsNiranjan Sathyanarayanarao Krishnarao, Bharadwaja Maharshi Ramaswamy
Life of this patent
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Abstract
A power tool includes an actuator that moves an implement, an infrared sensor, and a range sensor. A controller in the power tool receives temperature data and range data corresponding to objects in a region proximate to the implement. If an object in the predetermined has a temperature within a predetermined range and is identified as being within a predetermined minimum distance of the moving implement, then the controller deactivates the actuator to halt the implement.
Claims13
A power tool comprising:
- an actuator configured to move an implement;
- an infrared sensor located at a first predetermined position in relation to the implement configured to generate temperature data corresponding to a region proximate to the implement, the implement being outside of the region, in which a plurality of objects approach the implement;
- a range sensor located at a second predetermined position in relation to the implement and configured to generate range data corresponding to the plurality of objects in the region proximate to the implement, the implement being outside of the region;
- and
- a controller operatively connected to the infrared sensor, the range sensor, and the actuator, the controller being configured to:
- operate the actuator to move the implement;
- identify a presence of an object having a temperature within a predetermined temperature range in the region proximate to the implement with reference to the temperature data received from the infrared sensor;
- identify a distance between the object having the temperature within the predetermined temperature range and the implement with reference to the range data received from the range sensor;
- and
- deactivate the actuator in response to the identified distance between the implement and the object having the temperature within the predetermined temperature range being less than a predetermined threshold.
7 more elements
A method of operating a power tool comprising:
- operating an actuator to move an implement associated with the power tool;
- identifying a presence of an object having a temperature within a predetermined temperature range in a region proximate to the implement, the implement being located outside of the region, with reference to temperature data received from an infrared sensor;
- identifying a distance between the implement and the object having the temperature within the predetermined temperature range in the region proximate to the implement, the implement being outside of the region, with reference to the range data received from a range sensor;
- and
- deactivating the actuator in response to the identified distance between the implement and the object having the temperature within the predetermined temperature range being less than a predetermined threshold.
2 more elements
Dependencies are inferred from the claim text.