Title :
Human information sensor
Author :
Morinaka, Katsuya ; Hshimoto, Kazuhiko ; Tanaka, Shinji ; Yoshiike, Nobuyuki
Author_Institution :
Human Environ. Res. Lab., Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
Abstract :
A high performance human information sensor, which can be used for detecting the number of occupants and their locations, has been developed. The sensor head module consists of a IR (infrared) sensor, a 4-channel distance sensor and a horizontal scanning mechanism. A 2-dimensional thermal distribution was obtained by horizontal scanning of a vertical 1-dimensional pyroelectric array detector. Spatial information on new objects was recognized by the difference between the measured 2-dimensional distance distribution and the initial 2-dimensional distance distribution. The number of occupants and their locations were recognized accurately from the overlapping parts of the thermal distribution and the spatial information on the new objects
Keywords :
distance measurement; infrared detectors; pyroelectric detectors; distance sensor; horizontal scanning mechanism; human information sensor; infrared sensor; pyroelectric array detector; spatial information; two-dimensional thermal distribution; Charge coupled devices; Charge-coupled image sensors; Humans; Infrared detectors; Infrared sensors; Mechanical sensors; Object detection; Pyroelectricity; Sensor arrays; Thermal lensing;
Conference_Titel :
Solid State Sensors and Actuators, 1997. TRANSDUCERS '97 Chicago., 1997 International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-3829-4
DOI :
10.1109/SENSOR.1997.635471
