A ship IoT wireless communication system using metal surface waves is proposed. The ship IoT wireless communication system may include a first access point installed in a first compartment among a plurality of compartments formed in a ship, and a second access point installed in a second compartment among the plurality of compartments. Each of the first access point and the second access point may perform surface wave communication with each other to form a communication network inside the ship. Each of the first and second access points may include a surface wave generator configured to transmit and receive a surface wave through at least one of a floor, a ceiling, or a bulkhead of each of the plurality of compartments.

Aspects of the subject disclosure may include, for example, obtaining a first group of video content streams of an event, determining a first point of view of a plurality of audience members of the event, and selecting a first portion of the first group of video content streams of the event according to the first point of view of the plurality of audience members. Further aspects can include aggregating the first portion of the first group of video content streams resulting in first aggregated video content, generating first augmented reality content from the first aggregated video content according to the first point of view, and providing the first augmented reality content to a communication device. The communication device can present the first augmented reality content. Other embodiments are disclosed.

The present disclosure provides a construction management system capable of ascertaining information about a construction site more accurately than before. A construction management system 100 comprises: a position sensor 16a detecting position information about a transport vehicle 10 that transports payload; a position sensor 26 detecting position information about a loading machine 20 that loads payload onto the transport vehicle 10; a weight detection device 120 detecting weight information about the payload held by the loading machine 20; and an information management controller 130 which, based on chronological information of the position information about the transport vehicle 10, chronological information of the position information about the loading machine, and chronological information of the weight information, calculates the load weight of the payload loaded onto the transport vehicle 10.

The present disclosure provides a construction management system capable of ascertaining information about a construction site more accurately than before. A construction management system 100 comprises: a position sensor 16a detecting position information about a transport vehicle 10 that transports payload; a position sensor 26 detecting position information about a loading machine 20 that loads payload onto the transport vehicle 10; a weight detection device 120 detecting weight information about the payload held by the loading machine 20; and an information management controller 130 which, based on chronological information of the position information about the transport vehicle 10, chronological information of the position information about the loading machine, and chronological information of the weight information, calculates the load weight of the payload loaded onto the transport vehicle 10.

Aspects of the subject disclosure may include, for example, obtaining a first group of video content streams of an event, determining a first point of view of a plurality of audience members of the event, and selecting a first portion of the first group of video content streams of the event according to the first point of view of the plurality of audience members. Further aspects can include aggregating the first portion of the first group of video content streams resulting in first aggregated video content, generating first augmented reality content from the first aggregated video content according to the first point of view, and providing the first augmented reality content to a communication device. The communication device can present the first augmented reality content. Other embodiments are disclosed.

An information processing apparatus includes processing circuitry configured to: acquire, from each of a plurality of electric power tools, position information of each of the plurality of electric power tools and actuation information indicating that each of the plurality of electric power tools is actuated; generate work information indicating a work status of each of the plurality of electric power tools based on the actuation information, the work status including a actuation history of each of the plurality of the electric power tools; receive designation of a region; extract, from among the plurality of electric power tools, an electric power tool of which the position information is included in the designated region; generate display data for causing a display device to display the work information of the extracted electric power tool; and output the display data.

Aspects of the subject disclosure may include, for example, obtaining a first group of video content streams of an event, determining a first point of view of a plurality of audience members of the event, and selecting a first portion of the first group of video content streams of the event according to the first point of view of the plurality of audience members. Further aspects can include aggregating the first portion of the first group of video content streams resulting in first aggregated video content, generating first augmented reality content from the first aggregated video content according to the first point of view, and providing the first augmented reality content to a communication device. The communication device can present the first augmented reality content. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, obtaining a first group of video content streams of an event, determining a first point of view of a plurality of audience members of the event, and selecting a first portion of the first group of video content streams of the event according to the first point of view of the plurality of audience members. Further aspects can include aggregating the first portion of the first group of video content streams resulting in first aggregated video content, generating first augmented reality content from the first aggregated video content according to the first point of view, and providing the first augmented reality content to a communication device. The communication device can present the first augmented reality content. Other embodiments are disclosed.

A maintenance assistance system that outputs an alarm for a notification of a maintenance request for a management target machine to a predetermined outputting apparatus is provided. The maintenance assistance system generates an evaluation value on the basis of an operation data database, estimates required items to be used for maintenance and a quantity of the required items in regard to a failure item whose occurrence is predicted on the basis of a required item database when an abnormality decision is made in regard to the management target machine on the basis of the evaluation value, estimates, on the basis of the evaluation value and a failure case database, a grace period before a failure occurs in regard to the failure item whose occurrence is predicted, estimates a procurement period required for procurement of the required items from a parts inventory database, and outputs the alarm to the outputting apparatus when the procurement period has no leeway with respect to the grace period.

A method of tracking rotations of a drum includes activating a three axis accelerometer located on a side of the drum, measuring linear accelerations along three orthogonal axes using the accelerometer, determining whether a predetermined angle of the drum has been rotated based on the measured linear accelerations from the accelerometer, activating a gyroscope when it is determined that the predetermined angle of the drum has been rotated, measuring angular speed at the gyroscope, calculating a number of rotations of the drum from the measured angular speed, and deactivating the gyroscope when it is determined that the measured angular speed is lower than a noise floor level.