{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T15:11:06Z","timestamp":1770822666755,"version":"3.50.1"},"reference-count":23,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2022,8,16]],"date-time":"2022-08-16T00:00:00Z","timestamp":1660608000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Austrian Science Fund (FWF)","award":["P 29135"],"award-info":[{"award-number":["P 29135"]}]},{"name":"Austrian Science Fund (FWF)","award":["19F2195A"],"award-info":[{"award-number":["19F2195A"]}]},{"name":"Austrian Science Fund (FWF)","award":["873353"],"award-info":[{"award-number":["873353"]}]},{"name":"Austrian Science Fund (FWF)","award":["874070"],"award-info":[{"award-number":["874070"]}]},{"name":"ESSEM: German Federal Ministry for Digital and Transport (BMDV)","award":["P 29135"],"award-info":[{"award-number":["P 29135"]}]},{"name":"ESSEM: German Federal Ministry for Digital and Transport (BMDV)","award":["19F2195A"],"award-info":[{"award-number":["19F2195A"]}]},{"name":"ESSEM: German Federal Ministry for Digital and Transport (BMDV)","award":["873353"],"award-info":[{"award-number":["873353"]}]},{"name":"ESSEM: German Federal Ministry for Digital and Transport (BMDV)","award":["874070"],"award-info":[{"award-number":["874070"]}]},{"name":"POSITIM: Austrian Research Promotion Agency (FFG)","award":["P 29135"],"award-info":[{"award-number":["P 29135"]}]},{"name":"POSITIM: Austrian Research Promotion Agency (FFG)","award":["19F2195A"],"award-info":[{"award-number":["19F2195A"]}]},{"name":"POSITIM: Austrian Research Promotion Agency (FFG)","award":["873353"],"award-info":[{"award-number":["873353"]}]},{"name":"POSITIM: Austrian Research Promotion Agency (FFG)","award":["874070"],"award-info":[{"award-number":["874070"]}]},{"name":"SINUS: Austrian Research Promotion Agency (FFG)","award":["P 29135"],"award-info":[{"award-number":["P 29135"]}]},{"name":"SINUS: Austrian Research Promotion Agency (FFG)","award":["19F2195A"],"award-info":[{"award-number":["19F2195A"]}]},{"name":"SINUS: Austrian Research Promotion Agency (FFG)","award":["873353"],"award-info":[{"award-number":["873353"]}]},{"name":"SINUS: Austrian Research Promotion Agency (FFG)","award":["874070"],"award-info":[{"award-number":["874070"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Field measurement campaigns with traffic participants using wearable sensors and questionnaires can be challenging to carry out because of inconsistent interfaces across manufacturers for accessing sensor data and campaign-specific questionnaire contents bear large potential for errors. We present an app able to consolidate data from multiple technical sensors and questionnaires. The functionality includes providing feedback for correct sensor platform mounting, accessing and storing all sensor and questionnaire data in a uniform data structure. To do this, the app implements a sensor data bus class that unifies data from technical sensors and questionnaires. The app can also be extended to accommodate other sensor platforms provided they have a suitable API. We also describe a database structure holding the data from multiple campaigns and test subjects in a privacy preserving fashion. Finally, we identify some potential issues and hints that practitioners may encounter when conducting a measurement campaign.<\/jats:p>","DOI":"10.3390\/s22166120","type":"journal-article","created":{"date-parts":[[2022,8,17]],"date-time":"2022-08-17T03:15:27Z","timestamp":1660706127000},"page":"6120","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["An eDiary App Approach for Collecting Physiological Sensor Data from Wearables together with Subjective Observations and Emotions"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5029-2425","authenticated-orcid":false,"given":"Andreas","family":"Petutschnig","sequence":"first","affiliation":[{"name":"Department of Geoinformatics, University of Salzburg, 5020 Salzburg, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Steffen","family":"Reichel","sequence":"additional","affiliation":[{"name":"Spatial Services GmbH, 5020 Salzburg, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Krist\u00fdna","family":"M\u011bchurov\u00e1","sequence":"additional","affiliation":[{"name":"Spatial Services GmbH, 5020 Salzburg, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2233-6926","authenticated-orcid":false,"given":"Bernd","family":"Resch","sequence":"additional","affiliation":[{"name":"Department of Geoinformatics, University of Salzburg, 5020 Salzburg, Austria"},{"name":"Center for Geographic Analysis, Harvard University, Cambridge, MA 02138, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1016\/j.jtrangeo.2014.07.014","article-title":"Using principles of justice to assess the modal equity of regional transportation plans","volume":"41","author":"Golub","year":"2014","journal-title":"J. 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