Auto detection system based on thermal signals
AssigneePixart Imaging Inc.
InventorsChih-Ming Sun, Ming-Han Tsai, Chiung-Wen Lin, Po-Wei Yu, Wei-Ming Wang, Sen-Huang Huang
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Abstract
There is provided an auto detection system including a thermal detection device and a host. The host controls an indication device to indicate a prompt message or detection results according to a slope variation of voltage values or 2D distribution of temperature values detected by the thermal detection device, wherein the voltage values include the detected voltage of a single pixel or the sum of detected voltages of multiple pixels of a thermal sensor.
Claims20
An auto detection system, configured to monitor an elevator cabin, the auto detection system comprising:
- a thermal detection device configured to output digital values at a predetermined frequency;
- and
- a host configured to
- receive the digital values,
- calculate a slope between two digital values,
- identify opening and closing of a door of the elevator cabin by comparing the calculated slop and a slope threshold range, and
- calculate a fluctuation degree of multiple digital values within a predetermined time interval after the door is identified to be opened and then closed.
An auto detection system, configured for stove detection, the auto detection system comprising:
- a thermal detection device, having a field of view covering the stove, the thermal detection device comprising a thermopile sensor array configured to output a thermal frame having multiple object temperatures;
- and
- a host, configured to receive the multiple object temperatures, and control a display device to show a message of reaching a target temperature upon identifying that at least one of the multiple object temperatures is larger than a heating threshold.
An auto detection system, comprising:
- a thermal detection device, having a field of view covering ingredients, the thermal detection device comprising a thermopile sensor array configured to output a thermal frame having multiple object temperatures;
- and
- a host, configured to receive the multiple object temperatures and control a display device to show a message of nonuniform temperature upon identifying that uniformity of the multiple object temperatures is lower than a uniformity threshold.
Dependencies are inferred from the claim text.