この作品は、Envisible、株式会社によって支えられました。本研究は韓国健康技術 R & D プロジェクト、厚生・福祉、韓国共和国 (HI15C1027) の助成金によっても支えられました。この研究は、韓国の国立研究財団 (NRF 2016R1A1A1A05005348) によっても支えられました。

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著者が明らかに何もありません。

この研究では、まず設計と食品の摂取量と身体活動のパターンを感じるガラスの製造プロセスを提案しました。この研究として (歩行、まばたきなど) その他の身体活動から食物摂取を区別するためにデータ分析を中心に、センサーとデータ集録システムの移動記録の実装が必要です。したがって、システムには、センサー、無線通信機能を備えた MCU とバッテリーが含まれています。提案プ?...

継続的かつ客観的は食物摂取の監視は、過剰なエネルギーの蓄積は、overweightness と肥満1、様々 な医療の合併症2になる可能性を引き起こす可能性があります人間の体のエネルギー バランスを維持するために不可欠です。エネルギーの不均衡の主な要因は過剰な食物摂取および十分な身体活動3知られています。毎日のエネルギーの支出の監視の様々 な研究は、でもウェアラブル デバイス4,5,6, 身体活動パターンの自動と客観的測定を導入されている、最終消費者レベルと医療のステージ7。食物摂取量のモニタリングに関する研究はしかし、まだ、研究室の設定に、直接かつ客観的に食品の摂取量の活動を検出することは困難だからです。ここでは、デバイスの設計とその評価食品摂取量と日常生活の中で実践的なレベルで身体活動パターンを監視するための提示を目指します。
咀嚼・嚥下音8,9,10、手首11,12,13の動きを通じて食品の摂取量を監視し、画像に様々 な間接アプローチがあった分析14、および筋電図 (EMG)15。ただし、これらのアプローチが彼らの固有の制限があるため毎日の生活アプリケーションに適用することは困難: 音を使用してメソッドが環境音によって影響を受ける脆弱性食物を消費していない場合他の身体活動から区別するために、手首の動きを使用してメソッドが難しかった画像と筋電位信号を用いた方法は、運動と環境の境界によって制限されます。これらの研究は、センサーを使用して食品の摂取量の自動検出の機能を示したが、まだ実験室の設定を超えて日常生活に実用性の制限があった。
この研究では、食品摂取量の自動かつ客観的監視に側頭筋筋活動のパターンを使用しました。一般的に、側頭筋を繰り返し収縮と食品摂取量16,17; 中に咀嚼筋の一部としてリラクゼーションしたがって、側頭筋の筋活動の周期的なパターンを検出することにより食品摂取量の活動を監視できます。最近、活動18,19,20,21, 筋電図や圧電歪に使用筋肉の側頭筋を利用したいくつかの研究をされている人間の上に直接適用してセンサー皮膚。これらのアプローチは、しかし、筋電図電極またはひずみセンサーの皮膚の場所に敏感だった、運動や汗のため皮膚から簡単にデタッチされました。したがって、側頭筋筋活動両方のヒンジを所定の私たちの以前の研究22で挿入する 2 つのロード セルその意味提案メガネのペアを使用して新しい、有効な方法です。この方法は、肌に触れることがなく高精度な食品摂取量の活動を検出の大きな可能性を示した。また非目障りな非侵入以来だった我々 は一般的なメガネ型デバイスを使用します。
本研究では、メガネ型デバイスを実装する方法と食品の摂取量と身体活動を監視するため側頭筋筋活動のパターンを使用する方法の詳細なプロトコルのシリーズを紹介します。プロトコルは、ハードウェア設計とメガネ、回路モジュール、およびデータ集録モジュールの 3 D プリントのフレームで構成される製造のプロセスを含めるし、データ処理・解析用ソフトウェア アルゴリズムを含めます。さらにいくつかの注目の活動 (例えば、咀嚼、歩行とウインク) の中で分類を行った食品摂取量と他の身体活動の分の違いを伝えることができる実用的なシステムとしての可能性を実証するにはパターン。

<table>
	<tbody>
		<tr>
			<td>FSS1500NSB</td>
			<td>Honeywell, USA</td>
			<td></td>
			<td>Load cell</td>
		</tr>
		<tr>
			<td>INA125U</td>
			<td>Texas Instruments, USA</td>
			<td></td>
			<td>Amplifier</td>
		</tr>
		<tr>
			<td>ESP-07</td>
			<td>Shenzhen Anxinke Technology, China</td>
			<td></td>
			<td>MCU with Wi-Fi module</td>
		</tr>
		<tr>
			<td>74LVC1G3157</td>
			<td>Nexperia, The Netherlands</td>
			<td></td>
			<td>Multiplexer</td>
		</tr>
		<tr>
			<td>MP701435P</td>
			<td>Maxpower, China</td>
			<td></td>
			<td>LiPo battery</td>
		</tr>
		<tr>
			<td>U1V10F3</td>
			<td>Pololu, USA</td>
			<td></td>
			<td>Voltage regulator</td>
		</tr>
		<tr>
			<td>Ultimaker 2</td>
			<td>Ultimaker, The Netherlands</td>
			<td></td>
			<td>3D printer</td>
		</tr>
		<tr>
			<td>ColorFabb XT-CF20</td>
			<td>ColorFabb, The Netherlands</td>
			<td></td>
			<td>Carbon fiber filament</td>
		</tr>
		<tr>
			<td>iPhone 6s Plus</td>
			<td>Apple, USA</td>
			<td></td>
			<td>Data acquisition device</td>
		</tr>
		<tr>
			<td>Jelly Belly</td>
			<td>Jelly Belly Candy Company, USA</td>
			<td></td>
			<td>Food texture for user study</td>
		</tr>
	</tbody>
</table>

design and evaluation of smart glasses for food intake and physical activity classification

本研究は、一連の設計および製造食品の摂取量と他の身体活動の間に側頭筋筋活動のパターンを検出するメガネ型ウェアラブル デバイスのプロトコルを示します。メガネとフレームの両方のヒンジに挿入された負荷セル統合プリント回路基板 (PCB) モジュールの 3 D プリントのフレームを作製しました。力信号を集録し、ワイヤレスでそれらを送信モジュールが使用されました。これらの手順は、歩行や waggling といった実用的な身に着けている条件で評価できる高いモビリティとシステムを提供します。分類のパフォーマンスは、食物摂取のパターンを区別するこれらの物理的な活動によっても評価されます。一連のアルゴリズムを用いて信号を前処理特徴ベクトルを生成し、いくつかのパターンを認識する活動 (咀嚼とウインク)、および他の物理的な活動 (、話して、歩いて、残りを定住) を特集します。注目の活動の中で分類の平均 F1スコア 91.4% であったことがわかった。このアプローチは潜在的自動かつ客観的摂食問題を扱うための実用的な手段として精度の高い摂食行動の監視のために有用することができます考えています。

、プロトコルで説明されている手順を、図 4に示すように頭の部分、LH (133 と 138 mm) や寺院、LT (110 と 125 mm) の長さの差別化で 3 D 印刷されたフレームの 2 つのバージョンを準備しました。そのため、被験者の頭のサイズ、形状など対象を選んだユーザー研究のため自分の頭に合わせてフレームの一つから変えることができ?...

Watch this Scientific Journal Video about Design and Evaluation of Smart Glasses for Food Intake and Physical Activity Classification at JoVE.com

Design and Evaluation of Smart Glasses for Food Intake and Physical Activity Classification

デザインとスマートなメガネの食品の摂取量と身体活動の分類のための評価

本稿ではプロトコルの設計と食物摂取のパターンを検出するメガネ型ウェアラブル デバイスを製造、ガラスの両方のヒンジのロードセルを使用してその他の注目の物理的な活動が挿入されます。

This study presents a series of protocols of designing and manufacturing a glasses-type wearable device that detects the patterns of temporalis muscle ...

design-evaluation-smart-glasses-for-food-intake-physical-activity

Research

JoVE Journal

Engineering

11.1K ビュー.  Seoul National University. 本稿ではプロトコルの設計と食物摂取のパターンを検出するメガネ型ウェアラブル デバイスを製造、ガラスの両方のヒンジのロードセルを使用してその他の注目の物理的な活動が挿入されます。

ビデオ: Design and Evaluation of Smart Glasses for Food Intake and Physical Activity Classification

Experiments on Ultrasonic Lubrication Using a Piezoelectrically-assisted Tribometer and Optical Profilometer

Friction and wear are detrimental to engineered systems. Ultrasonic lubrication is achieved when the interface between two sliding surfaces is vibrated at a frequency above the acoustic range (20 kHz). As a solid-state technology, ultrasonic lubrication can be used where conventional lubricants are unfeasible or undesirable. Further, ultrasonic lubrication allows for electrical modulation of the effective friction coefficient between two sliding surfaces. This property enables adaptive systems that modify their frictional state and associated dynamic response as the operating conditions change. Surface wear can also be reduced through ultrasonic lubrication. We developed a protocol to investigate the dependence of friction force reduction and wear reduction on the linear sliding velocity between ultrasonically lubricated surfaces. A pin-on-disc tribometer was built which differs from commercial units in that a piezoelectric stack is used to vibrate the pin at 22 kHz normal to the rotating disc surface. Friction and wear metrics including effective friction force, volume loss, and surface roughness are measured without and with ultrasonic vibrations at a constant pressure of 1 to 4 MPa and three different sliding velocities: 20.3, 40.6, and 87 mm/sec. An optical profilometer is utilized to characterize the wear surfaces. The effective friction force is reduced by 62% at 20.3 mm/sec. Consistently with existing theories for ultrasonic lubrication, the percent reduction in friction force diminishes with increasing speed, down to 29% friction force reduction at 87 mm/sec. Wear reduction remains essentially constant (49%) at the three speeds considered.

We present a protocol for using a piezoelectrically-assisted tribometer and optical profilometer to investigate the dependence of ultrasonic wear and friction reduction on linear velocity, contact pressure, and surface properties.

圧電支援摩擦計と光プロフィルを用いた超音波潤滑の実験

Friction and wear are detrimental to engineered systems. Ultrasonic lubrication is achieved when the interface between two sliding surfaces is vibrated at ...

工学

Scanning Light Scattering Profiler (SLPS) Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses

The scanning light scattering profiler (SLSP) methodology has been developed for the full-angle quantitative evaluation of forward and backward light scattering from intraocular lenses (IOLs) using goniophotometer principles. This protocol describes the SLSP platform and how it employs a 360&#176; rotational photodetector sensor that is scanned around an IOL sample while recording the intensity and location of scattered light as it passes through the IOL medium. The SLSP platform can be used to predict, non-clinically, the propensity for current and novel IOL designs and materials to induce light scatter. Non-clinical evaluation of light scattering properties of IOLs can significantly reduce the number of patient complaints related to unwanted glare, glistening, optical defects, poor image quality, and other phenomena associated with the unintended light scattering. Future studies should be conducted to correlate SLSP data with clinical results to help identify which measured light scatter is most problematic for patients that have undergone cataract surgery subsequent to IOL implantation.

Scanning Light Scattering Profiler SLPS Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses

This protocol describes the scanning light scattering profiler (SLSP) that enables the full-angle quantitative evaluation of forward and backward scattering of light from intraocular lenses (IOLs) using goniophotometer principles.

眼内レンズからの前方散乱光および後方散乱光を定量的に評価するための走査型光散乱プロファイラ（SLPS）に基づく方法論

The scanning light scattering profiler (SLSP) methodology has been developed for the full-angle quantitative evaluation of forward and backward light ...

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Here, we demonstrate the advantages of the laser Doppler vibrometer (LDV) over conventional techniques (the network analyzer), as well as the techniques to create an application-based microelectromechanical systems (MEMS) filter and how to use it efficiently (i.e., tuning the tuning-capability and avoiding both failure and stiction). LDV enables crucial measurements that are impossible with the network analyzer, such as higher mode detection (highly sensitive biosensor application) and resonance measurement for very small devices (fast prototyping). Accordingly, LDV was used to characterize the frequency tuning range and resonance frequency at different modes of the MEMS filters built for this study. This wide range frequency tuning mechanism is based simply on Joule heating from the embedded heaters and relatively high thermal stress with respect to the temperature of a fixed-fixed beam. However, we demonstrate that another limitation of this method is the resulting high thermal stress, which can burn the devices. Further improvement was achieved and shown for the first time in this study, such that the tuning capability was increased by 32% through an increase in the applied DC bias voltage (25 V to 35 V) between the two adjacent beams. This important finding eliminates the need for the extra Joule heating at the wider frequency tuning range. Another possible failure is through stiction and requirement of structure optimization: We propose a simple and easy technique of low frequency square wave signal application that can successfully separate the beams and eliminates the need for the more sophisticated and complicated methods given in the literature. The above findings necessitate a design methodology, and so we also provide an application-based design.

A protocol for a fixed-fixed beam design using a laser Doppler vibrometer (LDV), including the measurement of frequency tuning, modification of tuning capability, and avoidance of device failure and stiction, is presented. The superiority of the LDV method over the network analyzer is demonstrated due to its higher mode capability.

デザインと効率的な広帯域波長可変 MEMS フィルター特性評価手法

Here, we demonstrate the advantages of the laser Doppler vibrometer (LDV) over conventional techniques (the network analyzer), as well as the techniques ...

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

We demonstrate the use of two nuclear-based analytical methods that can follow the modifications of microstructural arrangement of iron-based metallic glasses (MGs). Despite their amorphous nature, the identification of hyperfine interactions unveils faint structural modifications. For this purpose, we have employed two techniques that utilize nuclear resonance among nuclear levels of a stable 57Fe isotope, namely M&#246;ssbauer spectrometry and nuclear forward scattering (NFS) of synchrotron radiation. The effects of heat treatment upon (Fe2.85Co1)77Mo8Cu1B14 MG are discussed using the results of ex situ and in situ experiments, respectively. As both methods are sensitive to hyperfine interactions, information on structural arrangement as well as on magnetic microstructure is readily available. M&#246;ssbauer spectrometry performed ex situ describes how the structural arrangement and magnetic microstructure appears at room temperature after the annealing under certain conditions (temperature, time), and thus this technique inspects steady states. On the other hand, NFS data are recorded in situ during dynamically changing temperature and NFS examines transient states. The use of both techniques provides complementary information. In general, they can be applied to any suitable system in which it is important to know its steady state but also transient states.

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Here, we present a protocol to describe ex situ and in situ investigations of structural transformations in metallic glasses. We employed nuclear-based analytical methods which inspect hyperfine interactions. We demonstrate the applicability of M&#246;ssbauer spectrometry and nuclear forward scattering of synchrotron radiation during temperature-driven experiments.

Ex その場その場で調査構造変換の方法: 金属ガラスの結晶化の事例

We demonstrate the use of two nuclear-based analytical methods that can follow the modifications of microstructural arrangement of iron-based metallic ...

Hybrid Printing for the Fabrication of Smart Sensors

A method to combine additively manufactured substrates or foils and multilayer inkjet printing for the fabrication of sensor devices is presented. First, three substrates (acrylate, ceramics, and copper) are prepared. To determine the resulting material properties of these substrates, profilometer, contact angle, scanning electron microscope (SEM), and focused ion beam (FIB) measurements are done. The achievable printing resolution and suitable drop volume for each substrate are, then, found through the drop size tests. Then, layers of insulating and conductive ink are inkjet printed alternately to fabricate the target sensor structures. After each printing step, the respective layers are individually treated by photonic curing. The parameters used for the curing of each layer are adapted depending on the printed ink, as well as on the surface properties of the respective substrate. To confirm the resulting conductivity and to determine the quality of the printed surface, four-point probe and profilometer measurements are done. Finally, a measurement set-up and results achieved by such an all-printed sensor system are shown to demonstrate the achievable quality.

Here we present a protocol for the fabrication of inkjet-printed multilayer sensor structures on additively manufactured substrates and foil.

ハイブリッド スマート センサーの作製のための印刷

A method to combine additively manufactured substrates or foils and multilayer inkjet printing for the fabrication of sensor devices is presented. First, ...

Design and Implementation of a Bespoke Robotic Manipulator for Extra-corporeal Ultrasound

With the potential for high precision, dexterity, and repeatability, a self-tracked robotic system can be employed to assist the acquisition of real-time ultrasound. However, limited numbers of robots designed for extra-corporeal ultrasound have been successfully translated into clinical use. In this study, we aim to build a bespoke robotic manipulator for extra-corporeal ultrasound examination, which is lightweight and has a small footprint. The robot is formed by five specially shaped links and custom-made joint mechanisms for probe manipulation, to cover the necessary range of motion with redundant degrees of freedom to ensure the patient&#39;s safety. The mechanical safety is emphasized with a clutch mechanism, to limit the force applied to patients. As a result of the design, the total weight of the manipulator is less than 2 kg and the length of the manipulator is about 25 cm. The design has been implemented, and simulation, phantom, and volunteer studies have been performed, to validate the range of motion, the ability to make fine adjustments, mechanical reliability, and the safe operation of the clutch. This paper details the design and implementation of the bespoke robotic ultrasound manipulator, with the design and assembly methods illustrated. Testing results to demonstrate the design features and clinical experience of using the system are presented. It is concluded that the current proposed robotic manipulator meets the requirements as a bespoke system for extra-corporeal ultrasound examination and has great potential to be translated into clinical use.

This paper introduces the design and implementation of a bespoke robotic manipulator for extra-corporeal ultrasound examination. The system has five degrees of freedom with lightweight joints made by 3D printing and a mechanical clutch for safety management.

設計と体外超音波特注ロボット ・ マニピュレーターの実装

With the potential for high precision, dexterity, and repeatability, a self-tracked robotic system can be employed to assist the acquisition of real-time ...

Crack Monitoring in Resonance Fatigue Testing of Welded Specimens Using Digital Image Correlation

A procedure using digital image correlation (DIC) to detect cracks on welded specimens during fatigue tests on resonance testing machines is presented. It is intended as a practical and reproducible procedure to identify macroscopic cracks at an early stage and monitor crack propagation during fatigue tests. It consists of strain field measurements at the weld using DIC. Images are taken at fixed load cycle intervals. Cracks become visible in the computed strain field as elevated strains. This way, the whole width of a small-scale specimen can be monitored to detect where and when a crack initiates. Subsequently, it is possible to monitor the development of the crack length. Because the resulting images are saved, the results are verifiable and comparable. The procedure is limited to cracks initiating at the surface and is intended for fatigue tests under laboratory conditions. By visualizing the crack, the presented procedure allows direct observation of macrocracks from their formation until rupture of the specimen.

Digital image correlation is used in fatigue tests on a resonance testing machine to detect macroscopic cracks and monitor crack propagation in welded specimens. Cracks on the specimen surface become visible as increased strains.

デジタル画像相関を用いた溶接試料の共振疲労試験における亀裂モニタリング

A procedure using digital image correlation (DIC) to detect cracks on welded specimens during fatigue tests on resonance testing machines is presented. It ...

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation

Traditional U-turn designs can improve operational features obviously, while U-turn diversions and merge segments still cause traffic congestion, conflicts, and delays. An exclusive spur dike U-turn lane design (ESUL) is proposed here to solve the disadvantages of traditional U-turn designs. To evaluate the operation performance of ESUL, a traffic simulation protocol is needed. The whole simulation process includes five steps: data collection, data analysis, simulation model build, simulation calibration, and sensitive analysis. Data collection and simulation model build are two critical steps and are described later in greater detail. Three indexes (travel time, delay, and number of stops) are commonly used in the evaluation, and other parameters can be measured from the simulation according to experimental needs. The results show that the ESUL significantly diminishes the disadvantages of traditional U-turn designs. The simulation can be applied to solve microscopic traffic problems, such as in single or several adjacent intersections or short segments. This method is not suitable for larger scale road networks or evaluations without data collection.

This protocol describes the process of solving a microscopic traffic problem with simulation. The whole process contains a detailed description of data collection, data analysis, simulation model build, simulation calibration, and sensitive analysis. Modifications and troubleshooting of the method are also discussed.

レーダー収集データとシミュレーションによる排他的なスパーダイクUターン設計の評価

Traditional U-turn designs can improve operational features obviously, while U-turn diversions and merge segments still cause traffic congestion, ...

Fabrication of Compressed Hosiery and Measurement of its Pressure Characteristic Exerted on the Lower Limbs

This article reports the pressure characteristic measurement of compressed hosiery via direct and indirect methods. In the direct method, an interface sensor is used to measure the pressure value exerted on the lower limbs. In the indirect method, the necessary parameters mentioned by the cone and cylinder model are tested to calculate the pressure value. The necessary parameters involve course density, wales density, circumference, length, thickness, tension, and deformation of the compressed hosiery. Compared with the results of the direct method, the cone model in the indirect method is more suitable for calculating the pressure value because the cone model considers the change in radius of the lower limb from the knee to the ankle. Based on this measurement, the relationship among fabrication, structure, and pressure is further investigated in this study. We find that graduation is the main influence that can change the wales density. On the other hand, elastic motors directly affect the course density and the circumference of the stockings. Our reported work provides the fabrication-structure-pressure relationship and a design guide for gradually compressed hosiery.

This article reports fabrication, structure and pressure measurement of compressed hosiery by employing direct and indirect methods.

圧縮基圧の作製と下肢の圧力特性の測定

This article reports the pressure characteristic measurement of compressed hosiery via direct and indirect methods. In the direct method, an interface ...

Manufacturing, Control, and Performance Evaluation of a Gecko-Inspired Soft Robot

This protocol presents a method for manufacturing, control, and evaluation of the performance of a soft robot that can climb inclined flat surfaces with slopes of up to 84&#176;. The manufacturing method is valid for the fast pneunet bending actuators in general and might, therefore, be interesting for newcomers to the field of actuator manufacturing. The control of the robot is achieved by means of a pneumatic control box that can provide arbitrary pressures and can be built by only using purchased components, a laser cutter, and a soldering iron. For the walking performance of the robot, the pressure-angle calibration plays a crucial role. Therefore, a semi-automated method for the pressure-angle calibration is presented. At high inclines (&#62; 70&#176;), the robot can no longer reliably fix itself to the walking plane. Therefore, the gait pattern is modified to ensure that the feet can be fixed on the walking plane.

This protocol provides a detailed list of steps to be performed for the manufacturing, control and evaluation of the climbing performance of a gecko-inspired soft robot.

ヤモリにインスパイアされたソフトロボットの製造・制御・性能評価

This protocol presents a method for manufacturing, control, and evaluation of the performance of a soft robot that can climb inclined flat surfaces with ...