| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Outline of Final Research Achievements |
The crowd behavior estimation comprises various estimations related to the position, action state such as walking and running, and movement direction. I use the channel state information (CSI), which represents the multipath propagation state, for the estimation method. When the CSI is used as a sensor, people do not have to carry communication devices such as smartphones, resulting in a device-free environment. Using CSI, I established the estimation algorithm and the measurement environment, such as the number of antennas and their locations, to estimate position, action state, and movement direction to achieve high accuracy.
As an application example using CSI, I examined the following: the material estimation, the water level estimation, the rotation speed measurement, and the dryness estimation for laundry, etc. I established the estimation technique for applying the person and the thing.
I surveyed the standardization activity of wireless LAN sensing, called IEEE802.1bf.
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