{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T12:38:59Z","timestamp":1777639139851,"version":"3.51.4"},"reference-count":11,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2016,10,12]],"date-time":"2016-10-12T00:00:00Z","timestamp":1476230400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"JSPS KAKENHI","award":["15K21197"],"award-info":[{"award-number":["15K21197"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The number of accidents involving elderly individuals has been increasing with the increase of the aging population, posing increasingly serious challenges. Most accidents are caused by reduced judgment and physical abilities, which lead to severe consequences. Therefore, studies on support systems for elderly and visually impaired people to improve the safety and quality of daily life are attracting considerable attention. In this study, a road surface condition distinction method using reflection intensities obtained by an ultrasonic sensor was proposed. The proposed method was applied to movement support systems for elderly and visually impaired individuals to detect dangerous road surfaces and give an alarm. The method did not perform well in previous studies of puddle detection, because the alert provided by the method did not enable users to avoid puddles. This study extended the method proposed by previous studies with respect to puddle detection ability. The findings indicate the effectiveness of the proposed method by considering four road surface conditions. The proposed method could detect puddle conditions. The effectiveness of the proposed method was verified in all four conditions, since users could differentiate between road surface conditions and classify the conditions as either safe or dangerous.<\/jats:p>","DOI":"10.3390\/s16101678","type":"journal-article","created":{"date-parts":[[2016,10,12]],"date-time":"2016-10-12T10:18:49Z","timestamp":1476267529000},"page":"1678","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Application of Ultrasonic Sensors in Road Surface Condition Distinction Methods"],"prefix":"10.3390","volume":"16","author":[{"given":"Shota","family":"Nakashima","sequence":"first","affiliation":[{"name":"Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1, Tokiwadai, Ube-city, Yamaguchi 755-8611, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4878-7095","authenticated-orcid":false,"given":"Shingo","family":"Aramaki","sequence":"additional","affiliation":[{"name":"Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1, Tokiwadai, Ube-city, Yamaguchi 755-8611, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuhki","family":"Kitazono","sequence":"additional","affiliation":[{"name":"Department of Creative Engineering, National Institute of Technology, Kitakyushu College, 5-20-1, Shii, Kokuraminami-ku, Kitakyushu-city, Fukuoka 802-0985, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shenglin","family":"Mu","sequence":"additional","affiliation":[{"name":"Department of Electronic Control Engineering, National Institution of Technology, Hiroshima College, 4272-1, Higashino, Osakikamijima-cho, Toyota-gun, Hiroshima 725-0231, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kanya","family":"Tanaka","sequence":"additional","affiliation":[{"name":"Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1, Tokiwadai, Ube-city, Yamaguchi 755-8611, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Seiichi","family":"Serikawa","sequence":"additional","affiliation":[{"name":"Department of Electrical and Electronic Engineering, Kyushu Institute of Technology, 1-1, Sensui-cho, Tobata-ku, Kitakyushu-city, Fukuoka 804-8550, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2016,10,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1325","DOI":"10.4130\/jaev.7.1325","article-title":"Development of a safety driving system for electric wheelchair","volume":"7","author":"Masuzawa","year":"2009","journal-title":"J. Asian Electr. Veh."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"203","DOI":"10.1007\/BF00710857","article-title":"Wheelchair for physically disabled people with voice, ultrasonic and infrared sensor control","volume":"2","author":"Mazo","year":"1995","journal-title":"Auton. Robots"},{"key":"ref_3","unstructured":"Kadono, Y., Dobashi, H., Abe, T., Tajima, T., and Kimura, H. (2009, January 10). A fall detection system in bathroom using ultrasound sensor. Proceedings of the 71th Annual Convention IPS Japan, Siga, Japan."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"662","DOI":"10.1541\/ieejsmas.126.662","article-title":"Development of abnormality detection system for bathers using ultrasonic sensors","volume":"126","author":"Ohnishi","year":"2006","journal-title":"IEEJ Trans. Sens. Micromach."},{"key":"ref_5","first-page":"297","article-title":"Fundamental study of surrounding situation sensing for visually handicapped person using ultrasonic ranging sensors","volume":"10","author":"Takegami","year":"2010","journal-title":"Fac. Hum."},{"key":"ref_6","unstructured":"Kitahara, S., Morioka, H., and Niitsu, Y. (2011, January 12). Obstacle detection and notification method on walking support for visually handicapped persons. Proceedings of the IEICE Student Activity Committee Workshop, Tokyo Section, Tokyo, Japan."},{"key":"ref_7","first-page":"610","article-title":"Hardware material recognition system using combinatorial logic circuit and ultrasonic sensor","volume":"J85-A","author":"Moritake","year":"2002","journal-title":"IEICE Trans."},{"key":"ref_8","first-page":"890","article-title":"Category Recognition System Using Two Ultrasonic Sensors and Combinational Logic Circuit","volume":"J87-A","author":"Moritake","year":"2004","journal-title":"IEICE Trans."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"S110","DOI":"10.1002\/tee.21928","article-title":"Design of freely configurable safety light curtain using hemispherical mirrors","volume":"8","author":"Lu","year":"2013","journal-title":"IEEJ Trans. Electr. Electron. Eng."},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Iwasaki, D., Haruyama, K., Mu, S., Lu, H., Tanaka, K., Kitazono, Y., Wakasa, Y., Serikawa, S., and Nakashima, S. (2012, January 16\u201318). Ground material distinction method using reflection intensities obtained by ultrasonic sensor. Proceedings of the 2012 IEEE\/SICE International Symposium on System Integration (SII), Fukuoka, Japan.","DOI":"10.1109\/SII.2012.6427385"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"1207","DOI":"10.4130\/jaev.7.1207","article-title":"Evaluation of method of measuring distance between object and walls using ultrasonic sensors","volume":"7","author":"Ishihara","year":"2009","journal-title":"J. Asian Electr. Veh."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/16\/10\/1678\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T19:32:47Z","timestamp":1760211167000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/16\/10\/1678"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,10,12]]},"references-count":11,"journal-issue":{"issue":"10","published-online":{"date-parts":[[2016,10]]}},"alternative-id":["s16101678"],"URL":"https:\/\/doi.org\/10.3390\/s16101678","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2016,10,12]]}}}