Data Analysis System, Server Device, Data Analysis Method and Data Analysis Program

1 - 8 . (canceled)

9 . A data analysis system comprising:

a data acquisition device configured to produce sensor data, the sensor data including data acquired by a sensor attached to a user and user identification information for identifying the user;

a data collection processing device configured to collect the sensor data from a predetermined region as a target;

a data analysis device configured to calculate the number of users staying in the predetermined region based on the user identification information;

an estimation device configured to estimate density of the users based on the number of the users; and

an alert display device configured to display the density of the users.

10 . A data analysis system according to claim 9 , wherein:

the data acquisition device includes a plurality of sensor terminal devices each configured to produce the sensor data and transmit the sensor data to a relay terminal device;

the data collection processing device includes the relay terminal device, the relay terminal device is configured to collect the sensor data in a predetermined region and transmit the sensor data to a server device, the predetermined region being a region where the relay terminal device is able to receive the sensor data from the plurality of sensor terminal devices;

the data analysis device and the estimation device are equipped by a server device configured to receive the sensor data from the relay terminal device, calculate the number of the users who are staying in the predetermined region based on the user identification information, and estimate density of the users based on the number of the users; and

the alert display device is disposed in a vicinity of the relay terminal device.

11 . The data analysis system according to claim 9 , wherein

at least one of the data acquisition device or the data collection processing device is configured to add clock time information to the sensor data; and

the data analysis device is configured to:

calculate staying times of the users in the predetermined region based on the clock time information; and

estimate the density of the users in the predetermined region based on the number of the users and the staying times.

12 . A server device comprising:

a reception circuit configured to receive sensor data, the sensor data including data acquired by a sensor attached to a user and user identification information for identifying the user;

an ID number calculation processing circuit configured to calculate the number of users staying in a predetermined region based on the user identification information;

an estimation processing circuit configured to estimate density of the users based on the number of users; and

a transmission circuit configured to transmit the density of the users to an alert display device for displaying the density of the users.

13 . A data analysis method comprising:

calculating the number of users staying in a predetermined region based on user identification information included in sensor data acquired from a sensor attached to a user; and

analyzing density of the users in the predetermined region based on the number of the users.

14 . The data analysis method according to claim 13 , further comprising:

estimating that the density of the users is low in a case in which the number of the users staying in the predetermined region is less than a lower limit value of the number of the users.

15 . The data analysis method according to claim 14 , further comprising:

adding clock time information to the sensor data; and

calculating staying times of the users in the predetermined region based on the clock time information.

16 . The data analysis method according to claim 15 , further comprising:

estimating that the density is high in a case in which the number of the users staying in the predetermined region is equal to or greater than the lower limit value of the number of the users and greater than an upper limit value of the number of the users.

17 . The data analysis method according to claim 16 , further comprising:

estimating that the density is high in a case in which the number of the users staying in the predetermined region is equal to or greater than the lower limit value of the number of the users, equal to or less than the upper limit value of the users, and the number of the users who are staying for staying times exceeding an upper limit value of the staying times is equal to or greater than the lower limit value of the number of the users.

18 . The data analysis method according to claim 13 , wherein the calculating the number of the users comprises:

acquiring sensor data from a sensor attached to a user; and

calculating the number of the users who are staying in a predetermined region based on user identification information included in the sensor data.