【正文】 80)。 // steps/minute }public void savePaceOrSpeedSetting(int maintain, float desiredPaceOrSpeed) { editor = ()。 if (maintain == M_PACE) { (desired_pace, (int) desiredPaceOrSpeed)。 } else if (maintain == M_SPEED) { (desired_speed, desiredPaceOrSpeed)。 } ()。 }}北京郵電大學(xué)世紀(jì)學(xué)院畢業(yè)設(shè)計(jì)（論文）任務(wù)書(shū)姓名學(xué)號(hào)專(zhuān)業(yè)通信工程系（院）通信與信息工程設(shè)計(jì)（論文）題目基于安卓平臺(tái)的手機(jī)計(jì)步器的設(shè)計(jì)題目分類(lèi)□ 工程設(shè)計(jì)；□ 工程技術(shù)研究；□ 軟件工程（如CAI課題等）；□ 專(zhuān)題研究；□藝術(shù)設(shè)計(jì)；■ 其他 題目來(lái)源□ 自然科學(xué)基金與部、省、市級(jí)以上科研課題；□ 企、事業(yè)單位委托課題；□ 院級(jí)課題； ■ 自擬課題 □ 其他 指導(dǎo)教師（指導(dǎo)教師組組長(zhǎng)及成員姓名）職 稱(chēng)工作單位備注畢業(yè)設(shè)計(jì)(論文)的內(nèi)容和要求：步行有益于健康，步行熱在歐美等發(fā)達(dá)國(guó)家十分盛行，各種類(lèi)型的電子計(jì)步器也日趨流行，本論文要求學(xué)生在安卓平臺(tái)上開(kāi)發(fā)一款手機(jī)計(jì)步器軟件，利用手機(jī)的加速度傳感器感知用戶(hù)步態(tài)的變化，實(shí)現(xiàn)準(zhǔn)確記步。 論文內(nèi)容包括： 采集在步行過(guò)程中手機(jī)加速度傳感器的輸出信號(hào)，分析該信號(hào)和步行的關(guān)系，研究合適的記步算法，無(wú)論手機(jī)處于何種位置和狀態(tài)，均能夠?qū)崿F(xiàn)精確計(jì)步。 在安卓平臺(tái)下編程實(shí)現(xiàn)該算法；實(shí)現(xiàn)每日步行里程、消耗熱量等統(tǒng)計(jì)功能。應(yīng)完成的工作和提交材料要求（課題完成后應(yīng)提交成果的種類(lèi)、數(shù)量、質(zhì)量等方面的要求）：1. 開(kāi)題報(bào)告，2000字左右。2. 論文中期報(bào)告，符合院系相關(guān)要求。3. 畢業(yè)論文，不少于15000字，要求概念正確，調(diào)理清晰，文筆流暢。論文中的數(shù)學(xué)公式必須用Office自帶的公式編輯器輸入，原理框圖等用Visio繪制。4. 計(jì)步器軟件開(kāi)發(fā)包，軟件可在安卓平臺(tái)手機(jī)上正常運(yùn)行，并實(shí)現(xiàn)準(zhǔn)確記步。主要參考文獻(xiàn)（參考文獻(xiàn)不少于4篇，參考文獻(xiàn)目錄按GB/T7714—2005的要求填寫(xiě)）：[1] [M]..[2] 吳亞峰,[M]..[3] [M]..[4] 嚴(yán)蔚敏, [M]..[5] [M]..[6] Bruce (陳昊鵬)[M].:2335[7] 蘇亞光。吳亞峰。[J].(23):36.[8] [D].:34一60.畢業(yè)設(shè)計(jì)（論文）進(jìn)度計(jì)劃（從正式啟動(dòng)時(shí)間開(kāi)始，以周為單位填寫(xiě)）：第 1~2 周：進(jìn)行課題調(diào)研，文獻(xiàn)查閱，撰寫(xiě)開(kāi)題報(bào)告。第 3 周：繼續(xù)查閱文獻(xiàn)，完成論文開(kāi)題。第 4~6 周：鞏固學(xué)習(xí)數(shù)據(jù)結(jié)構(gòu)，系統(tǒng)學(xué)習(xí)Android開(kāi)發(fā)，Java語(yǔ)言。第 7 周：研究手機(jī)內(nèi)部傳感器如何感知手機(jī)狀態(tài)，研究記步算法并用安卓平臺(tái)實(shí)現(xiàn)。第 8 周：準(zhǔn)備中期報(bào)告和中期答辯，迎接中期檢查。第 9 周：根據(jù)中期檢查中存在的問(wèn)題，查閱文獻(xiàn)，調(diào)整研究?jī)?nèi)容和研究方法。第10~11周：初步完成計(jì)步器軟件的開(kāi)發(fā)，在安卓平臺(tái)手機(jī)上試運(yùn)行。第12~13周：繼續(xù)調(diào)試、完善程序中的錯(cuò)誤，準(zhǔn)備撰寫(xiě)畢業(yè)論文的資料和數(shù)據(jù)。第14~15周：撰寫(xiě)畢業(yè)論文，完善畢業(yè)論文。第 16 周：準(zhǔn)備答辯材料，完成畢業(yè)論文答辯。指導(dǎo)教師簽字： 日期： 2012 年 12 月 12 日教學(xué)單位意見(jiàn) 審核人簽字：年 月 日備注由指導(dǎo)教師撰寫(xiě)，可根據(jù)長(zhǎng)度加頁(yè)，一式二份，教務(wù)處、系（院）各留存一份，發(fā)給學(xué)生一份，任務(wù)完成后附在論文內(nèi)；凡審核不通過(guò)的任務(wù)書(shū)，請(qǐng)重新申報(bào)。 Visafree policy brings Chengdu biz, tourism boost. Making national headlines several times, Chengdu39。s 72hour visafree policy has attracted wide attention from both Chinese and foreign experts and businessmen since it took effect on Sept 1 last year. The program permits citizens from 51 countries and regions including the United States, Australia, Canada and Japan who have valid visas and flight tickets to a third country to spend three days in the city. The capital of Sichuan province is the first city in the western region of China to offer foreign tourists a threeday visa and the fourth nationwide to adopt the policy following Shanghai, Beijing and Guangzhou. Li Zhiyong, deputy dean of the tourism institute at Sichuan University, said the move contributes to a large increase in the number of overseas tourists and raises the city39。s level of internationalization. The policy will also bring direct economic revenue, Li said. Chengdu has many cultural legacies and is also a paradise for panda lovers with the world39。s largest breeding and research center. Three days are long enough for foreign visitors to visit those iconic tourist spots, he noted. The city is home to the remains of the Jin sha civilization that dates back more than 3,000 years as well as the Qing cheng Mountains and the Du jiang yan irrigation system. Qing cheng has long been recognized as the birthplace of Taoism, China39。s ancient indigenous religion, while Du jiang yan is considered to be the oldest functioning watercontrol project in the world. Chengdu ranked third in tourist facilities, management and services among 60 Chinese cities in a customer satisfaction survey released last year. But, Li added that efforts are still needed to develop more tourism products, improve English services and provide accurate translation of traffic signs and scenic billboards. Zhao Yun, chairwoman of British Chamber of Commerce Southwest China, told China Daily that his colleagues found the policy very convenient. A British client once flew here and stayed for just one day to check her ordered goods, she said. Zhao was born in Shanxi province, but she has lived in Chengdu for more than 10 years. My life was like a running race moving from place to place. I also lived in Beijing and Shanghai before, she said. But Chengdu is a place that you never want to leave once settling down. It is now my second hometown, she said. If the environment is further improved, the city will attract more people to visit and live, with the 72hour visafree policy and pelling conditions in transportation, culture, climate and cuisine, he said. Foreigners also gave positive feedback on the policy. A spokesman from Dell Inc said the pany has a global hub of operation in Chengdu, so the threeday visa has an immediate and positive influence on the pany39。s business development. Rudy Buttignol, president of the public broadcasting pany in British Columbia, Canada, said his work requires frequent travel to Chengdu and the policy makes the trips easier. Data from the city39。s public security bureau shows some 100 foreign visitors enjoyed the 72hour policy by the end of March, most of them from the United States, the United Kingdom and Germany. Chengdu also reported robust growth in its overall tourist industry last year. Official statistics show that it received some 150 million tourists last year, an increase of 28 percent from 2012. Around million came from abroad, an increase of 12 percent. Total revenue from tourism surpassed 133 billion yuan ($). During his visit to Kazakhstan in September, Chinese President Xi Jinping proposed that China and Central Asia join hands to build a Silk Road economic belt to boost cooperation. The idea has been widely echoed in Central Asian countries, being an encouraging blueprint for Chinese areas along the Silk Road that has linked Asia and Europe for more than 2,000 years. In the next three weeks, China Daily reporters will travel through the belt in China and in Kazakhstan, Uzbekistan and Turkey. They will show the progress and expectations of the countries, businesses and peoples on the route. Shaanxi the start of the ancient Sil