Information processing apparatus, display control method, and storage medium
An information processing apparatus acquires identification information about a wireless device detected by a detection apparatus which detects wireless devices, detection clock time information about a clock time at which the detection apparatus has detected the wireless device, and movement amount information about a movement amount by which the detection apparatus has moved between an optional first clock time and an optional second clock time, determines, with use of the movement amount information and detection clock time information and identification information about each of a plurality of wireless devices, relative positions of the plurality of wireless devices, and causes a display unit to display information about the determined relative positions of the plurality of wireless devices.
1 . An information processing apparatus comprising:
a power supply;
a detection sensor configured to detect a first wireless device and a second wireless device;
an acquiring unit configured to store
identification information about the first wireless device and the second wireless device;
detection time information when detected for the first wireless device and the second wireless device, and
a movement amount of the information processing apparatus together with the corresponding movement measurement time information;
an estimation unit configured to estimate a position of the information processing apparatus and a position of the second wireless device based on the identification information, the detection time information and the movement measurement time information;
a determination unit configured to determine a reference position; and
a controller configured to cause a display unit to display the position of the information processing apparatus and position information of the second wireless device,
wherein the first wireless device is a wireless device for indicating the reference position,
wherein the determination unit determines
the reference position of the first wireless device to be used for display on the display unit and
a relative position of the second wireless device with respect to the first wireless device using the detection time information and the identification information relating to the second wireless device, and
wherein the controller controls to display the position information of the second wireless device on the display unit based on the reference position determined by the determination unit.
2 . The information processing apparatus according to claim 1 ,
wherein the information processing apparatus is a radio frequency identification (RFID) reader, and the first wireless device and the second wireless device are RFID tags; and
wherein the detection sensor detects the first wireless device and the second wireless device by reading the identification information of the RFID tags of the first wireless device and the second wireless device.
3 . The information processing apparatus according to claim 1 , wherein the detection sensor detects the first wireless device and the second wireless device by using an antenna capable of switching a radio wave radiation directivity.
4 . The information processing apparatus according to claim 1 , wherein the controller controls to update the position information displayed on the display unit each time the relative position is changed.
5 . The information processing apparatus according to claim 1 , wherein the controller controls the display unit provided in a location information processing device to display the information.
6 . The information processing apparatus according to claim 1 , wherein the display unit is provided in a display device that is separate from the information processing apparatus.