{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T11:27:50Z","timestamp":1784287670965,"version":"3.55.0"},"reference-count":30,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2014,2,14]],"date-time":"2014-02-14T00:00:00Z","timestamp":1392336000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Large-scale wireless sensor networks have not achieved market impact, so far. Nevertheless, this technology may be applied successfully to small-scale niche markets. Shipyards are hazardous working environments with many potential risks to worker safety. Toxic gases generated in soldering processes in enclosed spaces (e.g., cargo holds) are one such risk. The dynamic environment of a ship under construction makes it very difficult to plan gas detection fixed infrastructures connected to external monitoring stations via wired links. While portable devices with gas level indicators exist, they require workers to monitor measurements, often in situations where they are focused on other tasks for relatively long periods. In this work, we present a wireless multihop remote gas monitoring system for shipyard environments that has been tested in a real ship under construction. Using this system, we validate IEEE 802.15.4\/Zigbee wireless networks as a suitable technology to connect gas detectors to control stations outside the ships. These networks have the added benefit that they reconfigure themselves dynamically in case of network failure or redeployment, for example when a relay is moved to a new location. Performance measurements include round trip time (which determines the alert response time for safety teams) and link quality indicator and packet error rate (which determine communication robustness).<\/jats:p>","DOI":"10.3390\/s140202981","type":"journal-article","created":{"date-parts":[[2014,2,14]],"date-time":"2014-02-14T12:37:22Z","timestamp":1392381442000},"page":"2981-3000","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Wireless Remote Monitoring of Toxic Gases in Shipbuilding"],"prefix":"10.3390","volume":"14","author":[{"given":"Carlos","family":"P\u00e9rez-Garrido","sequence":"first","affiliation":[{"name":"AtlantTIC, Universidade de Vigo, EI Telecomunicaci\u00f3n, R\u00faa Maxwell S\/N, Vigo 36310, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francisco","family":"Gonz\u00e1lez-Casta\u00f1o","sequence":"additional","affiliation":[{"name":"AtlantTIC, Universidade de Vigo, EI Telecomunicaci\u00f3n, R\u00faa Maxwell S\/N, Vigo 36310, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Chaves-D\u00edeguez","sequence":"additional","affiliation":[{"name":"AtlantTIC, Universidade de Vigo, EI Telecomunicaci\u00f3n, R\u00faa Maxwell S\/N, Vigo 36310, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pedro","family":"Rodr\u00edguez-Hern\u00e1ndez","sequence":"additional","affiliation":[{"name":"AtlantTIC, Universidade de Vigo, EI Telecomunicaci\u00f3n, R\u00faa Maxwell S\/N, Vigo 36310, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2014,2,14]]},"reference":[{"key":"ref_1","unstructured":"Dohler, M. (2013). IoT Vision and Future Directions., Internet of Things and Smart Cities PhD School. Invited Talk."},{"key":"ref_2","unstructured":"MacCarron, C. (2006). Confined Space Fatalities. [PhD Thesis, Edith Cowan University]."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"271","DOI":"10.1016\/0736-4679(85)90106-4","article-title":"Metal fume fevera review","volume":"2","author":"Mueller","year":"1985","journal-title":"J. Emerg. Med."},{"key":"ref_4","unstructured":"Dr\u00e4ger. Available online: http:\/\/www.draeger.com."},{"key":"ref_5","unstructured":"MSA. Available online: http:\/\/www.msasafety.com."},{"key":"ref_6","unstructured":"Casella. Available online: http:\/\/www.casellameasurement.com."},{"key":"ref_7","unstructured":"Ross Humphry, H. Selecting Gas Detectors For Confined Space Entries. Available online: http:\/\/www.enmet.com\/pdf\/selectinggasdetectors.pdf."},{"key":"ref_8","unstructured":"Berry, C., and Allen McNeely, K.B. (2012). A Guide to Safety in Confined Spaces, Occupational Safety and Health Division, N.C. Department of Labor."},{"key":"ref_9","unstructured":"Ludwig, H.R., Cairelli, S.G., and Whalen, J.J. (1994). Documentation for Immediately Dangerous to Life or Health Concentrations(IDLHs), NIOSH."},{"key":"ref_10","unstructured":"Dr\u00e4ger X-am 5000. Available online: http:\/\/www.draeger.com\/sites\/enus_us\/Pages\/Mining\/X-am-5000-Personal-Monitor.aspx."},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Viani, F., Rocca, P., Oliveri, G., and Massa, A. (2012, January 26\u201330). Pervasive Remote Sensing through WSNs. Prague, Czech Republic.","DOI":"10.1109\/EuCAP.2012.6206049"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Navarro, M., Davis, T.W., Liang, Y., and Liang, X. (2013, January 8\u201311). ASWP: A Long-Term WSN Deployment for Environmental Monitoring. Philadelphia, PA, USA.","DOI":"10.1109\/PIMRC.2013.6666489"},{"key":"ref_13","first-page":"650","article-title":"Design of toxic gas monitoring system based on virtual technology and WSN","volume":"341","author":"Song","year":"2013","journal-title":"Appl. Mech Mater."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"328","DOI":"10.1109\/JSEN.2012.2215733","article-title":"Context-adaptive multimodal wireless sensor network for energy-efficient gas monitoring","volume":"13","author":"Jelicic","year":"2013","journal-title":"Sens. J."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Kaemarungsi, K., Ranron, R., and Pongsoon, P. (2013, January 15\u201317). Study of Received Signal Strength Indication in ZigBee Location Cluster for Indoor Localization. Krabi, Thailand.","DOI":"10.1109\/ECTICon.2013.6559612"},{"key":"ref_16","unstructured":"Kjesbu, S., and Brunsvik, T. (2000, January 22\u201328). Radiowave Propagation in Industrial Environments. Nagoya, Japan."},{"key":"ref_17","unstructured":"Fink, J., Michael, N., Kushleyev, A., and Kumar, V. (2009, January 11\u201315). Indoor Radio Channel Models for IEEE 802.15.4 Technology. St Louis, MO, USA."},{"key":"ref_18","first-page":"353","article-title":"ZigBee propagations and performance analysis in last mile network","volume":"3","author":"Musikanon","year":"2012","journal-title":"Int. J. Innov. Manag. Technol."},{"key":"ref_19","unstructured":"Chehri, A., and Mouftah, H. (February, January 30). An Empirical Link-Quality Analysis for Wireless Sensor Networks. Maui, HI, USA."},{"key":"ref_20","unstructured":"Liu, R., Wassell, I., and Soga, K. (2010, January 11\u201313). Relay Node Placement for Wireless Sensor Networks Deployed in Tunnels. Niagara Falls, ON, Canada."},{"key":"ref_21","first-page":"113","article-title":"Employment of Wireless Sensor Networks for Full-Scale Ship Application","volume":"Volume 4808","author":"Kuo","year":"2008","journal-title":"Embedded and Ubiquitous Computing"},{"key":"ref_22","unstructured":"Pilsak, T., Schr\u00f6der, T., Eichmann, J., and Ter Haseborg, J.L. (2009, January 29). Field Test of a Wireless Sensor Network Inside the Engine Room of a Vessel. Hamburg, Germany."},{"key":"ref_23","unstructured":"Kdouh, H., Zaharia, G., Brousseau, C., El Zein, G., and Grunfelder, G. (July, January 30). ZigBee-Based Sensor Network for Shipboard Environments. Iasi, Romania."},{"key":"ref_24","unstructured":"Kdouh, H., Zaharia, G., Brousseau, C., Farhat, H., Grunfelder, G., and El Zein, G. (2012). Wireless Sensor Networks\u2014Technology and Applications, InTech."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Park, B., Paik, B., Cho, S., Lee, D., Kang, H., and Choi, J. (2008, January 21\u201325). Application of Ubiquitous Technology to Ship Environment. Dublin, Ireland.","DOI":"10.4108\/ICST.MOBIQUITOUS2008.3972"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"57","DOI":"10.14429\/dsj.61.503","article-title":"Location tracking of moving crew members for effective damage control in an emergency","volume":"61","author":"Kang","year":"2010","journal-title":"Def. Sci. J."},{"key":"ref_27","unstructured":"Ploeger, R., Newton, W., Rabiner, A., and Lally, R. (2003). Wireless E-Diagnostics Reduces Workload and Improves Shipboard Quality of Life, Oceana Sensor Technologies, Inc.. White Paper."},{"key":"ref_28","unstructured":"CC2530-CC2591 Evaluation Module Kit. Available online: http:\/\/www.ti.com\/tool\/cc2530-cc2591emk."},{"key":"ref_29","unstructured":"CC2530 ZigBee Development Kit. Available online: http:\/\/www.ti.com\/tool\/cc2530zdk."},{"key":"ref_30","unstructured":"(2006). IEEE Standard for Information Technology\u2014Local and Metropolitan Area Networks-Specific Requirements\u2014Part 15.4: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low-Rate Wireless Personal Area Networks (WPANs), IEEE. Technical Report."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/14\/2\/2981\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T21:08:11Z","timestamp":1760216891000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/14\/2\/2981"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,2,14]]},"references-count":30,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2014,2]]}},"alternative-id":["s140202981"],"URL":"https:\/\/doi.org\/10.3390\/s140202981","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,2,14]]}}}