A pickup request system includes: a determination unit configured to determine presence or absence of a package in a delivery box provided on a site of a building and whether or not a user is present in a first predetermined range including the building; and a control unit configured to request pickup of the package when it is determined that the user has moved from within the first predetermined range to out of the first predetermined range while the package is present in the delivery box.

The disclosed techniques provide a message communication device comprising: a memory that stores program instructions; and a processor that is configured to execute the program instructions stored in the memory to: accept at least an address and one or more messages to be transmitted to the address from a client, and the messages each possibly including a text; select one communications provider device; select one communication protocol; output a message that complies with the selected communication protocol and is to be transmitted to the address, from the one or more messages; and request the selected communications provider device to transmit the message such that the message that has been outputted is transmitted to the address by the selected communications provider device using the selected communication protocol, and repeat the request until the transmission is successful or there are no more combinations of the communications provider device and the communication protocol.

An information processing device includes an estimation unit estimating the number of persons in a facility based on a first number of MAC addresses counted based on first information about MAC addresses collected from radio waves transmitted by first terminals during a first time period, and a learned model, and a determination unit determining a third number of MAC addresses changing randomly, from the first number based on a first half of each of the MAC addresses. The learned model is generated by machine learning teacher data defining a relationship between a second number of MAC addresses counted based on second information about MAC addresses collected from radio waves transmitted from second terminals in the facility during a second time period, and the actual number of persons in the facility. The estimation unit estimates part of the number of the persons based on the third number and the learned model.

Detector (300) detects information regarding air quality. First communicator (330) is compatible with a first system for controlling equipment. Second communicator (340) is compatible with a second system for accumulating the information regarding the air quality. Controller (310) transmits the information regarding the air quality to the second system based on a state of the information regarding the air quality having been detected.

A virtual space management unit 60 generates a virtual space information and manages the virtual space information. An icon position acquisition unit 61 acquires icon position information of each of the users U. A transmission-side voice acquisition unit 62 acquires a transmission-side voice information. A distance calculation unit 63 calculates a distance between each of the icons based on a position within the virtual space of the icons corresponding to each of the users U. A correction factor determination unit 64 determines a correction factor of an output information based on the distance between the icons calculated by the distance calculation unit 63. A reception-side voice transmission control unit 65 transmits the acquired transmission-side voice information and the determined correction factor to each of the second user terminals 3.

In a monitoring system, the management device acquires position information of each camera, and selects at least one camera to be controlled from multiple cameras based on the position information of the camera transmitted from the mobile terminal and the position information of the mobile terminal, and acquires an image from selected the camera.

In a monitoring system, the management device acquires position information of each camera, and selects at least one camera to be controlled from multiple cameras based on the position information of the camera transmitted from the mobile terminal and the position information of the mobile terminal, and acquires an image from selected the camera.

An infrared output device is installed in a fixed apparatus whose position is fixed in a predetermined space. An input receiving device is configured to receive, through voice input, a control command to a first-type apparatus controllable by infrared ray. Upon the input receiving device receiving the control command, the infrared output device is configured to output infrared ray to the first-type apparatus.

A method of wirelessly connecting a first device to a target device is provided. The method includes searching for at least one device located in an orientation region of the first device, when a first input signal is received, determining the target device based on a direction that the first device is oriented, performing a wireless connection with the target device, and determining whether to maintain the wireless connection with the target device, when a second input signal is received.

A method of wirelessly connecting a first device to a target device is provided. The method includes searching for at least one device located in an orientation region of the first device, when a first input signal is received, determining the target device based on a direction that the first device is oriented, performing a wireless connection with the target device, and determining whether to maintain the wireless connection with the target device, when a second input signal is received.