| 摘要 |
PROBLEM TO BE SOLVED: To allow the system to estimate a position of a person outside a sensing range of a sensor by utilizing a moving path to predict a moving destination when the sensor cannot receive a badge ID. SOLUTION: A position information management device 100 specifies a position of a badge 120 based on a badge ID sent by the badge 120 and an ID of a sensor 110 receiving the ID and when the sensor 110 cannot receive the badge ID, a moving destination of the badge 120 is predicted by utilizing a moving path of the badge 120. The position information management device 100 acquires data consisting of the sensor ID and the badge ID for processing period and stores the data while a data acquisition time is added to the data. Furthermore, the device 100 distinguishes badges 120 sensed by the sensor 110 from badges 120 not sensed, recognizes its position when sensed and predicts its moving direction and speed when not sensed. Moreover, the device 100 predicts a moving distance when the badge is not sensed and calculates possibility of existence of a person at a predicted position. Then the position of the badge and its existence probability are visually displayed. |
