US-12626577-B2 - Data relay device, measurement system, data relay method, and recording medium

US12626577B2US 12626577 B2US12626577 B2US 12626577B2US-12626577-B2

Abstract

A data relay device including a communication unit that receives gait data including a feature amount extracted from sensor data related to a motion of a foot measured by a measurement device mounted in footwear of a subject, a storage unit that stores the received gait data, a sound input/output unit that outputs a sound to the subject in response to reception of the gait data, and an output unit that outputs target data including the gait data stored in the storage unit at a preset transmission timing.

Inventors

Hiroshi Kajitani

Assignees

NEC CORPORATION

Dates

Publication Date: 20260512
Application Date: 20230526
Priority Date: 20220606

Claims (8)

1 . A data relay device comprising: a storage; at least one memory storing instructions; and at least one processor connected to the at least one memory and configured to execute the instructions to: receive gait data including a feature amount extracted from sensor data related to a motion of a foot measured by a measurement device mounted in footwear of a subject; store the received gait data; receive a put-on/take-off signal indicating whether the subject puts on or takes off the footwear according to changes in the sensor data related to the motion of the foot; output a sound to the subject according to the put-on/take-off signal, the sound being different between when the subject goes out and when the subject comes home; and output target data including the gait data stored in the storage at a preset transmission timing.
2 . The data relay device according to claim 1 , wherein the at least one processor is configured to execute the instructions to generate sound data related to a sound of the subject, store the generated sound data in the storage, and output the target data including the gait data and the sound data stored in the storage at the preset transmission timing.
3 . The data relay device according to claim 1 , wherein the at least one processor is configured to execute the instructions to receive a detection signal in response to detection of a person including the subject near the data relay device, transmit a data request signal requesting transmission of the gait data in response to reception of the detection signal, and store the gait data transmitted in response to the data request signal in the storage.
4 . A measurement system comprising: the data relay device according to claim 1 ; and the measurement device mounted in the footwear of the subject, wherein the measurement device includes a sensor that measures a spatial acceleration and a spatial angular velocity, generates the sensor data related to the motion of the foot using the measured spatial acceleration and the measured spatial angular velocity, and outputs the generated sensor data, at least one memory storing instructions, and at least one processor connected to the at least one memory, and wherein the at least one processor is configured to execute the instructions to acquire time series data of the sensor data, extract a feature amount related to a gait from the time series data of the sensor data, generate the gait data including the extracted feature amount, and transmit the generated gait data to the data relay device.
5 . The measurement system according to claim 4 , wherein the at least one processor of the measurement device is configured to execute the instructions to detect whether the subject puts on or takes off the footwear using the sensor data, and transmit the put-on/take-off signal indicating whether the subject puts on or takes off the footwear to the data relay device in response to detecting whether the subject puts on or takes off the footwear.
6 . The measurement system according to claim 4 further comprising: a human sensor that is disposed near the data relay device to transmit a detection signal to the data relay device in response to detection of a person including the subject, wherein the data relay device transmits a data request signal requesting transmission of the gait data to the measurement device in response to reception of the detection signal, and wherein the measurement device transmits the gait data to the data relay device in response to the data request signal.
7 . A data relay method executed by a computer, the data relay method comprising: receiving gait data including a feature amount extracted from sensor data related to a motion of a foot of a subject; storing the received gait data; receiving a put-on/take-off signal indicating whether the subject puts on or takes off a footwear according to changes in the sensor data related to the motion of the foot; outputting a sound to the subject according to the put-on/take-off signal, the sound being different between when the subject goes out and when the subject comes home; and outputting target data including the stored gait data at a preset transmission timing.
8 . A non-transitory recording medium storing a program for causing a computer to execute: receiving gait data including a feature amount extracted from sensor data related to a motion of a foot of a subject; storing the received gait data; receiving a put-on/take-off signal indicating whether the subject puts on or takes off a footwear according to changes in the sensor data related to the motion of the foot; outputting a sound to the subject according to the put-on/take-off signal, the sound being different between when the subject goes out and when the subject comes home; and outputting target data including the stored gait data at a preset transmission timing.

Description

This application is based upon and claims the benefit of priority from Japanese Patent Application No. 2022-091725, filed on Jun. 6, 2022, the disclosure of which is incorporated herein in its entirety by reference. TECHNICAL FIELD The present disclosure relates to a data relay device and the like used for relaying data. BACKGROUND ART With growing interest in healthcare, services that provide information according to a gait have attracted attention. For example, a technique for analyzing a gait using sensor data measured by a sensor mounted in footwear such as shoes has been developed. A feature associated with a gait event related to a physical condition appears in the time series data of the sensor data. The physical condition of the subject can be estimated by analyzing the gait data including the feature associated with the gait event. Patent Literature 1 (JP 2012-113527 A) discloses a pedometer attached to a shoe. The pedometer of Patent Literature 1 includes a first signal generator, a second signal generator, and a sensor assembly. The first signal generator and the second signal generator are away from each other by a certain distance and mounted on different portions of the first shoe. The sensor assembly is mounted in the second shoe. The sensor assembly has a proximity sensor and a microcontroller unit. The proximity sensor senses the signals generated by the first signal generator and the second signal generator and generates related electrical signals. The microcontroller unit has an input coupled to the proximity sensor and receives the related electrical signals and converts the related electrical signals into pedestrian motion data. Patent Literature 2 (JP 2006-308301 A) discloses a measurement device that measures the number of steps and the like. The device of Patent Literature 2 includes a measurement means, a measurement information storage means, and a wireless communication means. The measurement means measures the number of steps, the stride length, and the gait speed of the user. The measurement information storage means stores measurement information including measured information and measurement time. The wireless communication means performs wireless communication with the outside. Patent Literature 3 (WO 2016/139844 A) discloses a state detection device that detects a specific state of a subject in a room using information obtained by a sensor installed in a space in a closed environment. The device of Patent Literature 3 specifies an action section in which the subject performs a specific action and a non-action section in which the subject does not perform the specific action using the second information obtained from the second sensor. The device of Patent Literature 3 determines a specific state of the subject for each of the action section and the non-action section. The pedometer of Patent Literature 1 measures the number of steps by receiving, by a proximity sensor, a magnetic impulse signal emitted from each of the first signal generator and the second signal generator. The pedometer of Patent Literature 1 generates a step count and a step time when one shoe passes the other shoe. The pedometer of Patent Literature 1 can measure the number of steps. However, the pedometer of Patent Literature 1 cannot measure acceleration and an angular velocity used for gait analysis. The device of Patent Literature 2 is mounted in a shoe of a user. The device of Patent Literature 2 can measure the number of steps, the stride length, and the gait speed according to the gait of the user as long as the user walks wearing the shoes. JP Patent Literature 2 does not disclose a timing of collecting sensor data. Therefore, in the method of Patent Literature 2, there is a case where data regarding the gait of the user cannot be accurately collected. The device of Patent Literature 3 detects a specific state of a subject in a space in a closed environment. In order to analyze the gait of the subject, gait data measured according to the gait outside the closed environment is necessary. However, the device of Patent Literature 3 cannot detect a specific state of the subject walking outside the closed environment. An object of the present disclosure is to provide a data relay device and the like capable of accurately collecting gait data acquired according to a gait of a subject in accordance with daily life of the subject. SUMMARY A data relay device according to an aspect of the present disclosure includes a communication unit that receives gait data including a feature amount extracted from sensor data related to a motion of a foot measured by a measurement device mounted in footwear of a subject, a storage unit that stores the received gait data, a sound input/output unit that outputs a sound to the subject in response to reception of the gait data, and an output unit that outputs target data including the gait data stored in the storage unit at a preset transmission timing. A data relay method