Securing a Wireless Site Network to Create a BIM-allied Work-front

The Building Information Model (BIM) serves as a framework to align all the project-related data, providing interoperability to store and retrieve information interactively. Unfortunately, the construction site itself is excluded from this interaction as the large amount of data requires high data transfer rates and ruggedized hardware. However, advanced wireless communication technologies open radically new avenues to relay large amounts of data automatically and in near real-time. Construction could be a key beneficiary of these advancements. Wireless communication integrated with BIM, GPS and the Internet is able to provide the backbone necessary for creating intelligent systems, supporting the designer in his or her office as well as workers on the work-front. This paper presents a study that documents the development and testing of prototypes designed to facilitate information sharing at the field-level during construction. The main system constitutes an information hub, called the eCKiosk, connecting “senders and receivers” both on-site as well as off-site. The system design is discussed and some of the main modules are demonstrated. Since the electronic Kiosk depends on robust connections to the wireless devices distributed across the site, reliable connectivity is essential. For this reason, the discussion includes a study of the electronic signals behaviour in an ever-changing construction site. Measurements of the signal strengths during excavation and concrete work are presented and compared with theoretical calculations used to predict wave propagation. The results show how present models overestimate signal attenuation patterns on the construction site. This is important for designing a reliable and secure wireless site networks to link BIM to the work-front

要介護認定基準の変更と影響の同期検証 －2009 年10 月版と2006 年版一次判定の較差－

本研究では，要介護認定基準2009年10月版と，旧版要介護認定基準2006年版との較差を比較するために，経年的な対象者における要介護状況の変化を除外して，それぞれを同期検証することを研究目的とした。その比較する対象を，同一対象者で同一時期に，それぞれの要介護認定基準ごとに別々の認定調査員の認定調査結果から要介護認定一次判定を実施した。それぞれの認定調査結果から，要介護認定基準の変更と影響について，8施設（400名）と8在宅事業所（208名）の要介護者等608名を研究対象として分析した。同期検証した結果，総体的に2009年10月版は，平均合計要介護時間は3.37分ほど多めに有意差を持って算出された。要介護度の2006年版から2009年10月版での一致率は，半数近くの調査対象者の要介護度が変化して，軽度化する調査対象者も2割半前後いた。要介護5の一致率が64.23%と最も高く，要支援1の一致率は29.73%と最も低くなった。要介護5以上の要介護時間に該当する要介護者は2009年10月版の方が2006年版よりも多く分布し，動ける認知症の要介護度はその全体の41.67%も軽度化していた。要介護認定には，要介護基準等介護時間だけによらない総合的指標である総合介護度の構築が必要である。In this research, the accreditation criteria of certifi cation standards of long-term care needed level have been changed to be stricter at the fiscal year 2009 in Japan. The difference and influence were compared in the primary judgment between the fiscal year 2006 and the fiscal year 2009 October version at the synchronized analysis. As for the synchronized analysis, each different investigator surveyed the same long-term care needed or assisted at the simultaneous time with the certifi cation standard for long-term care needed with 2009 October and 2006 version. The change and the influence of them were detected by each investigation result of the 608 long-term care needed who used the services of 8 institutions or the 8 in-home facilities. As a result, total 3.37 minutes needed more average time for total long-term care was signifi cantly calculated by 2009 October than 2006 version(p<0.01). The long-care needed levels of the same respondents have been changed with over half coincidence rate between 2009 October and 2006 versions. The 2009 October version was possible to slightly improve about 25 percent of the long-term care assisted level from 2006 to 2009 October, version, too. At the long-term care needed level 5, the 64.23% coincidence rate of the long-term care needed level was highest. At the long-term care assisted level 1, the 29.73% coincidence rate of the long-term care assisted level was lowest. There were more time and number distribution over the long-term care needed level 5 calculated by 2009 October than 2006 versions. 41.67% of the self-movable dementia was considerably lightened at the long-term care moderately needed and assisted level. The certification standard for long-term care needed should be constructed by not only the long-term care time but also total factors with the burden or necessity indexes for the judgment of the long-term care needed.報告Report