Position estimation system including infrared sensor array and estimator for monitoring pixel temperature change, and method for the same
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsTatsuo Koga, Kazuto Ura, Jin Yoshizawa
Life of this patent
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Abstract
A position estimation system includes: an obtainer that obtains image information of an image showing an indoor space in which a target object is located; an estimator that estimates coordinates of the target object in the indoor space, based on the image information obtained; a position information obtainer that obtains target position information that is position information of the target object from a positioning system; and a controller that stores identification information of the target object in association with the coordinates estimated, the identification information being included in the target position information obtained.
Claims10
A position estimation system comprising:
- an infrared array sensor configured to capture thermal images;
- a communication circuit that receives, by communicating with the infrared array sensor, a thermal image of a space in which a target object is located, the thermal image being generated by the infrared array sensor;
- an estimator that estimates, by monitoring a temporal change in a pixel value of each of a plurality of pixels included in the thermal image received, coordinates of the target object in the space, based on a degree of the temporal change in the pixel value monitored;
- a position information obtainer that obtains target position information that is position information of the target object from a positioning system that measures a position of an object located in the space based on a state of communication between a first communication device held by the object and a plurality of second communication devices disposed in the space;
- and
- a controller that stores, onto storage, identification information of the target object in association with the coordinates estimated, the identification information being included in the target position information obtained.
A position estimation method for implementation by a position estimation system, the position estimation system including:
- at least one processor;
- a memory connected to the at least one processor and configured to store a program executable by the at least one processor;
- and
- an infrared array sensor configured to capture thermal images,
- wherein the at least one processor is configured to execute the program stored in the memory to perform the position estimation method, the position estimation method comprising:
- receiving, by communicating with the infrared array sensor, a thermal image of a space in which a target object is located, the thermal image being generated by the infrared array sensor;
- estimating, by monitoring a temporal change in a pixel value of each of a plurality of pixels included in the thermal image received, coordinates of the target object in the space, based on a degree of the temporal change in the pixel value monitored;
- obtaining target position information that is position information of the target object from a positioning system that measures a position of an object located in the space based on a state of communication between a first communication device held by the object and a plurality of second communication devices disposed in the space;
- and
- storing identification information of the target object in association with the coordinates estimated, the identification information being included in the target position information obtained.
Dependencies are inferred from the claim text.