Kyoto University

Kobe Digital Labo Inc.

Ryoichi Shinkuma

Kazuhiro Yamaguchi

A blockchain network system includes a plurality of sensor devices and a blockchain network. The sensor devices are communicably connected with each other via the blockchain network, and sensor data acquired by the sensor devices is managed on the blockchain network in a distributed manner. The sensor device includes a sensor unit for sequentially acquiring sensor data in real space on a frame-by-frame basis, a data processing unit for processing the sensor data, a data storage unit for storing the sensor data, an encryption unit for encrypting the sensor data, and a registration unit for registering the sensor data encrypted by the encryption unit on the BC network. The data processing unit aggregates the sensor data with a predetermined number of frame aggregations. The encryption unit collectively encrypts the sensor data aggregated by the data processing unit with the predetermined number of frame aggregations.

Blockchain network system

The invention aims to provide a relationship evaluation system capable of effectively evaluating a relationship of a node to a reference node in a relationship graph in which plural nodes are connected by links. A reference point node is selected based on selection information regarding the reference point node input from the selection information input unit. Based on the reference point node, a relationship graph becoming an evaluation target is extracted from the relationship graph database to create a virtual communication network based on the graph. In the virtual communication network, simulation is executed by sequentially propagating a virtual communication packet to adjacent nodes from a reference point node selected by the reference point node selection unit as propagation origin. The relationship of the node to the reference node is evaluated based on the content of the communication packet received at the node as a result of executing the simulation.

Relationship graph evaluation system

An object display system for a relationship graph includes an object information reception unit that receives object information from a terminal device. A node conversion unit converts the object information into a corresponding node and sets the node as a reference point node. A relationship graph extraction unit extracts a relationship graph containing the reference point node from a relationship graph database. A node relationship evaluation unit evaluates the relationship of each node to a reference point node by scores of two types of evaluation indexes. An object arrangement unit converts each node into a corresponding object and arranges each object converted from each node while making scores of two types of evaluation indexes by the node relationship evaluation unit that correspond to a two-dimensional coordinate. An object output unit outputs each object to the terminal device.

Object display system for relationship graph

In an information terminal processing device of a first user, after selection of a content on a prescribed experience by the first user, content identification information is output to an information terminal device of a second user B, and various information thereof is transmitted to a server device. In an information terminal device of a second user B, after the content identification information is input, a unique key corresponding to the content identification information is generated. Information on the input date and time and/or the input location of the content identification information is transmitted to the server device. In the server device, after collating unique keys, the input date and time and/or the input location of the content identification information are defined as a shared date and time and/or a shared location of the content, and the shared experience information is constructed to make a database thereof.

Shared experience information construction system

There is provided a novel method that generates relational graph data. A relational graph database systemmanages a database containing graph data including node data connected through links. The relational graph database systemincludes a node generation unitthat generates node data corresponding to an operation of a terminal device, a partial graph generation unitthat generates partial graph data including a plurality of node data connected through links, and a graph generation unitthat synthesizes a plurality of partial graphs to generate graph data. In the partial graph generation unit, when a plurality of operations conducted in an identical terminal device have a prescribed relationship, a plurality of node data corresponding to the plurality of operations are connected through links to generate partial graph data.

Growing community of inventors

Kyoto, Japan

Ryoichi Shinkuma