Tese de mestrado integrado. Engenharia Informática e Computação. Faculdade de Engenharia. Universidade do Porto. 2012

Bluetooth is an emerging technology to build a solution for providing short range, low power, low cost, and ubiquitous wireless environments. In this paper we propose a algorithm for asynchronous data traffic at the Medium Access Control (MAC) layer to meet Bluetooth characteristic and compare with other scheduling algorithms. The algorithm, named Efficient Utilization Polling (EUP), uses a single bit of the payload packet header as supplied knowledge of queues of slaves to the master to dynamically adapt the polling intervals. We also propose a differentiation mechanism, named Shifting Polling Window (SPW), which is based on EUP and differentiates throughput between different classes and still keeps the link utilization almost the same.

This diploma thesis deals with the problem of ecological design and optimization of electrical products. The theoretical part describes the ecodesign legislation and assessment tools. The practical part is deals with created software for evaluation and comparison of electrical products. I analyzed three flash drives, which are commonly used. In these flash drives analyze packages and these packages were evaluated and compared with software. The last section describes the problems of availability of the necessary information.

Product-oriented environmental improvement is a great challenge for SMEs. There are two main reasons for this; firstly, a contradictory situation exists because SMEs lack the knowledge and competence to adopt the mainstream principle holistic approach of environmental product policy and regulations, and, secondly, there is a growing demand to incorporate environmental management system (EMS) and product dimension via ecodesign. To address these issues, this research focused on a product-oriented environmental management system (POEMS) that has been specifically developed to solve these problems. However, POEMS studies so far lack methodological development and focus more on how to incorporate EMS and eco-design rather than how to interpret the contents and improve POEMS as a standard tool. This research aimed to develop a new model, namely, component-based POEMS (CPOEMS). The C-POEMS model is a first attempt to define a potential standardised form of POEMS in its contents and structure, and form the basis for a useable self-help format for SMEs. A C-POEMS model, comprising stages of process, categories of functional areas/units, and elements, and a diagnosis template, as a component-based application, are developed and formulated. Through primary research, the C-POEMS conceptual model was verified and applicability of a C-POEMS component to SMEs was validated. C-POEMS made major contributions of two aspects: (1) methodological development of POEMS; (2) improvement of the format applicable for SMEs incorporating mainstream principles. Regarding methodological development of POEMS, arguments of existing POEMS methods were revealed, and the suggestions as well as analytical information in this research would provide benefit for further research in this field. The C-POEMS improved POEMS by providing clear contents and structure with predefined prior and iii correlated categories of functional area/units, which are helpful for SMEs. In addition, a diagnostic approach would help SMEs recognise their own problems and focus areas. As a result, SMEs can reduce the initial time to identify a structure of product-related environmental management, and increase opportunities to focus on major targets and product aspect for environmental improvements. Because of time constraint and underdevelopment of POEMS, there remain problems, in particular, to fully integrate EMS and eco-design, and the asymmetric situation between maintaining the broad scope of POEMS and focusing upon specific areas and user demand. However, this C-POEMS model provides a foundation for the development of EMS for SME’s and for ongoing development of POEMS.

This work dela with basic principles of eco-design including its valuation

在全球化的經濟蓬勃發展下，環保事件層出不窮，地球環境遭受重大破壞，各種環保議題引起國際矚目與熱烈討論。歐洲議會在2003年初公布了針對十項電機電子設備的兩個環保相關規範，分別是歐盟電機電子設備有害物質限制使用指令(RoHS)與歐盟電機電子設備廢棄物指令（WEEE），另外，歐盟能源使用產品生態化設計指令（EuP）也已在2005年8月11日公布，這些指令對相關產業的營運與發展將造成重大衝擊，其影響深遠供應鏈上下游成員無一倖免。 產業界為因應此一環保規範限制，將環境因素納入到傳統供應鏈管理當中，而形成了所謂「綠色供應鏈管理」的熱門議題。其主要差異乃是後者將生命週期思維融入產品設計、製造、使用與最終的廢棄回收處理的整個範疇。 本研究嘗試由資訊製造業的個案公司實際發展綠色供應鏈的過程中，以個案分析的方式收集其產品發展流程的各種資料，包括綠色設計、綠色採購、綠色供應商評鑑與稽核、綠色資訊平台建置等，並予以整理分析，建立個案公司的綠色供應鏈管理策略架構與協同運作模式。 本研究結果顯示綠色供應鏈管理策略的核心是「源頭管理」，源頭管理落實之後，加上其所衍生出來的綠色供應商評鑑與稽核、綠色產品管理系統、綠色資訊整合等各項活動，始能達到符合環保規範的目標，做到完整的風險控管，讓企業穩健發展。同時，本研究也顯示，建立協同設計機制及PDM資訊平台可以有效分析處理供應鏈上下成員間流通的資料，譬如，原物料、零組件等源頭綠色資料被有效地整合於綠色資訊平台，企業因應環保法規落實到資訊管理裡，營運風險因而獲得保障。 / Accompanying the vigorous economic development, the environment of the earth has been impacted tremendously. There are so many environmental issues that occurred in past decades turning into hot topics among nations. European Parliament published RoHS, and WEEE Directives in early 2003 that mandate ten categories of electric and electronic equipments to be restricted in the use of hazardous substances and wastes disposal respectively. Also, the setting of ecodesign requirement for Energy-Using Products newly announced in August of 2005. All the three mandatory EU Directives has definitely influenced significantly the foregoing development of the related industries. To react to the environmental regulations, the industries try to put environmental element into conventional Supply Chain Management, SCM. Thus, come out with Green SCM. The key differences are the latter mingling life cycle thought through out the whole scope of product life span. This research attempt to establish a collaborative structure and strategy for Green Supply Chain Management, by means of analyzing the information collected from the real developing process, including green design, green procurement, green suppliers’ appraisal, building up green information platform, of an information manufacturing firm. The research revealed that the core strategy of Green SCM is “Source Management”. Only if source management has fully implemented at the site of raw materials and component manufacturers, the environmental regulations can compliant thoroughly. Thus, the risk management is well controlled, so that the firm would operate soundly. Meanwhile, the research also showed that building up collaborative mechanism to link with PDM platform may process effectively the flowing data between the parties of supply chain. As a result, the restricted hazardous substances data of raw material and components are integrated into the green information platform and well managed. The operation risk of enterprise would be secured because of the entire implementation of information management for the environment regulations.

今 (2008) 年，全球規模排名前三大的電腦展，從1月開始美國拉斯維加斯的CES展、3月的德國漢諾威的CeBiT展，到6月在台北的Computex展，數千家之參展廠商，數十萬之買主與參觀人士，不約而同，大家的主訴求都是「綠色」與「節能」。向來，三大電腦展都是未來產品的風向球，加上從美國前副總統高爾的紀錄片「不願面對的真相」看到地球暖化現象日益嚴重，石油價格也不斷再創歷史新高，的確讓人感到這個世界將變得更為綠色，當人們愈來愈重視自己居住的這個環境與資源，也宣告「綠色產品、綠色消費」的時代正式來臨。 近年來一波波的綠色浪潮，如同過去十餘年間的網路興起，所產生巨大的改變一般。全球環保意識覺醒，尤以歐盟一向以高環保標準為最，陸續在2005年8月起推行的三大環保指令：WEEE(回收化)、RoHS(無毒化)、EuP(節能化)，超過80％的環境衝擊都跟產品設計有緊密關聯；是故，整合環境考量因素而成綠色產品的生態化設計作法，將會是企業最有效的方法。 上述WEEE 及RoHS兩項已於2006 年7月1日後，正式對輸出到歐盟各國的產品中全面實施管制，而日本、韓國、中國等國及美國(部分州)等，亦在2007年初立法通過並已實施，此股全球化之綠潮，已是勢不可擋；第三項的EuP (Energe using Product)「耗能使用產品之生態化設計指令」，歐盟各國已大多立法制定完成，部分國家還一併通過違規罰則，預計在2009年第一季起開始啟用，屆時勢必又將再度啟動第三回合的環保大挑戰。 我國對歐盟之貿易額佔了總體的比重極大，於2007年，我國出口到歐盟各國之電機、電子產品等金額超過逾NT$3,000億，企業也決不容忽視這廣大的市場商機。本研究的個案公司向來對環保意識相當重視，亦積極地關注在永續發展與環保議題上，所設計製造的綠色產品也行銷全球；現今的設計趨勢都以綠色、節能為導向，身處電子、電機產業的一員，面臨這項嚴峻之挑戰，更需即早因應，通過這些環保規範檢測，才能確保產品順利銷往歐盟。 本研究乃透過個案公司於過去三、四年中，利用 6 Sigma 的DMAIC循環改善手法，搭配ISO 9000/14000品質/環境管理系統以有效整合，組成專案團隊運作，成功導入6 Sigma WEEE / RoHS等專案，且比2006年7月1日的法定實施期限日，提早一季的時間完成歐盟WEEE及RoHS所有綠色產品之設計，並在符合法定時程/品質要求/客戶滿意等情況下順利出貨。 爰此，以綠色設計為整體考量因素，建置成一套標準化的流程機制，應用到EuP新環保規範中，進行產品節能、生命週期等多項評估，提升生態化設計能力。EuP雖與RoHS/WEEE的指令訴求內容互異，但本著6 Sigma RoHS過去分析及改善等手法，藉由嫻熟運作之科學管理模式，來縮短研發時程；目標為：提早一季時間完成產品設計，且品質符合環保規範驗證之出貨準備；期間雖會遭遇諸多問題與困難，但以6 Sigma經驗豐富之優秀成員組成的團隊，將採絕佳默契、合作無間的精神，順利於今年底達成任務，也為個案公司大幅提升環保戰力之全球競爭優勢。 關鍵字：限用有害物質指令、耗能使用產品指令、生態設計、國際標準組織、六標準差專案管理。 / In the world’s top three exhibitions of the electronic industry this year - namely CES of Las Vegas in January, CeBIT of Hanover in March, and Computex of Taipei in June, the main theme is the same: Green Technology and Energy Saving Products. Mr. Al Gore’s ‘Inconvenient Truth’ has unfolded future disasters caused by global warming, together with recent oil price hikes over US$140 a barrel, all these environmental and energy crisis have hastily ushered in the ‘Green Product Epoch.’ The European Union led the wave of Green Products by issuing the WEEE (Waste Electrical Electronic Equipment) directives in August 2005 which aimed at reducing E/E waste disposal through reuse, recycle and recovery, followed by the RoHS (Restriction of Hazardous Substance) directives enforced on July 1, 2007. EuP (Energy using Product) is the latest set of directives which will be implemented in 2009. Since more environmental impacts relate to product design, the green product ecological design incorporating environmental factors is most effective method. These regulations will greatly affect members of global E.E product supply. Taiwan had a big trade count with EU in the past time, so it will be caused more impacted as well. Therefore, many countries have regulated new national standards, many Taiwanese firms are making great efforts on the issues of Eco Design for energy saving to meet the trend on environment protection as earlier as possible and to provide operational producers for the business toward green global supply chain. For enterprises to implement environmental management system and to establish green product design and production by ISO9000 / ISO 14000 systems, and there are many procedures, validation and testing need to by 6 Sigma DMAIC improvement methodology. This case study proposes a model to include the RoHS green product into quality system successfully in 2 years ago, next case is provided to verify the model and justify how a firm can efficiently use the proposed model and empirical experience to meet product certification requirement into the system. The findings of this research can support other enterprises to implement appropriate model to integrate green product with framework of ISO9000/14000 quality/environment management system by 6 Sigma process. This is also suitable for a firm to upgrade its management system to meet various green requirements as WEEE, RoHS and EuP. The study is still enphasised many Taiwan manufacturers are tempted by the success of 6 Sigma in the western world and are now in the process of introducing 6 Sigma into their organizations. The push to further reduce costs has urged the firms to use 6 Sigma to regain their competitive positions in the global economy. Keywords: RoHS, EuP, Eco Design, ISO, 6 Sigma Managment