摘 ?要: 自全國(guó)新型冠狀病毒感染的肺炎疫情出現(xiàn)以來(lái),在教育主管部門指導(dǎo)下,各學(xué)校防疫工作科學(xué)有序開展。面對(duì)爆發(fā)增長(zhǎng)的病例數(shù)字,如何快速、準(zhǔn)確地收集校學(xué)生健康狀況數(shù)據(jù)是防疫工作的重中之重。師生出行或狀態(tài)狀況等數(shù)據(jù)若采用傳統(tǒng)的微信群、QQ群收集方式會(huì)導(dǎo)致時(shí)間久、效率低,而且難免錯(cuò)漏。利用信息化平臺(tái)發(fā)布填寫任務(wù),能夠讓師生在規(guī)定時(shí)間內(nèi)填寫當(dāng)天健康信息、歷史出行記錄、家庭成員健康狀況等。對(duì)于海量的數(shù)據(jù),通過(guò)手工篩選問(wèn)題數(shù)據(jù)工作量巨大。平臺(tái)基于DBSCAN算法對(duì)海量數(shù)據(jù)進(jìn)行分析,找出孤立點(diǎn),挖掘異常數(shù)據(jù),減少數(shù)據(jù)篩選工作量,提高定位精度,助力學(xué)校疫情防控。系統(tǒng)在湖北、江蘇、安徽、江西、廣東和河北等百所學(xué)校進(jìn)行了使用,產(chǎn)生了良好的社會(huì)效益和經(jīng)濟(jì)效益。
關(guān)鍵詞: 新冠肺炎; 數(shù)據(jù)采集; 云平臺(tái)設(shè)計(jì); DBSCAN算法; 疫情防控; 數(shù)據(jù)篩選
中圖分類號(hào): TN919?34 ? ? ? ? ? ? ? ? ? ? ? ? ? ? 文獻(xiàn)標(biāo)識(shí)碼: A ? ? ? ? ? ? ? ? ? ? ?文章編號(hào): 1004?373X(2020)24?0117?04
Design of school COVID?19 data acquisition cloud platform based on DBSCAN algorithm
SUN Caiyun
(College of Electronic & Information Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China)
Abstract: Since the outbreak of COVID?19 in China, the epidemic prevention work in schools has been carried out scientifically and orderly under the guidance of the ?competent authorities for education. In the face of the increasing number of the cases, how to quickly and accurately collect the health data of school students is the top priority of epidemic prevention work. If the traditional WeChat group and QQ group are used to collect the data of travel condition or status quo of teachers and students, it will lead to a long time consumption, low efficiency, and inevitable errors and omissions. The information platform is used to release the filling task, so that teachers and students can fill in the forms of their health information, historical travel records, and health status of their family members within the specified time. For massive data, the workload of manually filtering problem data is huge. The ?platform is based on DBSCAN algorithm to analyze massive data, so as to find out the isolated point, mine the abnormal data, reduce the workload of data screening, improve the positioning accuracy, and help epidemic prevention and control of schools. The system has been used in hundreds of schools in Hubei, Jiangsu, Anhui, Jiangxi, Guangdong and Hebei provinces, and has produced good social and economic benefits.
Keywords: COVID?19; data collection; cloud platform design; DBSCAN algorithm; epidemic prevention and control; data screening
0 ?引 ?言
2019新型冠狀病毒在2020年1月12日被世界衛(wèi)生組織命名為2019?nCoV [1],2020年2月11日被國(guó)際病毒分類委員會(huì)命名為SARS?CoV?2 [1] 。2019年12月,武漢市部分醫(yī)療機(jī)構(gòu)陸續(xù)出現(xiàn)不明原因肺炎病人。武漢市持續(xù)開展流感及相關(guān)疾病監(jiān)測(cè),發(fā)現(xiàn)病毒性肺炎病例27例,均診斷為病毒性肺炎/肺部感染[2?3]。 教育部2020年1月22日發(fā)出通知,要求各級(jí)各類學(xué)校做好新型肺炎的疫情防控。要求各地方、各學(xué)校積極參與疫情防控,密切關(guān)注師生健康,獲取第一手資料,積極采取針對(duì)性的專業(yè)指導(dǎo),做到早發(fā)現(xiàn)、早報(bào)告、早治療,配合各級(jí)衛(wèi)生部門做好集中救治工作,有效處置疫情,嚴(yán)格落實(shí)疫情防擴(kuò)散措施。
} ?else
context.Response.Write("{\"status\":\"error\",\"result\":\"nofile\"}"); ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?//返回狀態(tài)
5.3 ?填報(bào)任務(wù)統(tǒng)計(jì)
string province = this.ddlPROVINCE.SelectedValue.Trim();
//獲得省份
string wheresql = string.Empty; ? ? ? ? ? ? ? ? ?//定制空字符串
List
//構(gòu)造空參數(shù)變量
if (!string.IsNullOrEmpty(province)) ? ? ? ?//如果省份不為空
{ ?wheresql += " and a.province=@PROVINCE";
//構(gòu)造省份篩選字符串
lst.Add(new SqlParameter("@PROVINCE", province));
}
if (!string.IsNullOrEmpty(schoolname))
//構(gòu)造學(xué)校篩選字符串
{ ? wheresql += " and a.schoolname like ′%′+@SCHOOLNAME+′%′";
lst.Add(new SqlParameter("@SCHOOLNAME", schoolname));}
string sql = "select a.schoolname,a.province,(select count(*) from QY_TEACHER b where a.id=b.schoolid) as jssl,(select count(*) from QY_STUDENT b where a.id=b.schoolid) as xssl,";
//構(gòu)造完成SQL字符串
sql += "(select count(*) from QY_MODAL b where a.id=b.schoolid and modalsx=′私有′) as modalsl,(select count(*) from QY_TASK b where a.id=b.schoolid) as tasksl,";
sql += "(select count(*) from QY_CZRZB b where a.id=b.schoolid and b.yhcz=′登錄′) as zdlcs,(select top 1 drsj from QY_CZRZB b where a.id=b.schoolid and b.yhcz=′登錄′ order by b.id desc) as drsj";
sql += " from QY_SCHOOL a where sfqy=1" + wheresql + " order by province,schoolname"; ? ? ? ? ? //構(gòu)造完整的SQL字符串
GVData.DataSource = DbHelperSQL.Query(sql, lst.ToArray()); ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? //設(shè)置數(shù)據(jù)源
GVData.DataBind(); ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? //數(shù)據(jù)源綁定
6 ?結(jié) ?語(yǔ)
2020年在防控新冠肺炎疫情工作中,團(tuán)隊(duì)積極響應(yīng),助力抗疫,快速推出新冠肺炎疫情學(xué)校數(shù)據(jù)采集云平臺(tái)免費(fèi)給學(xué)校使用。系統(tǒng)兼容移動(dòng)設(shè)備,方便師生使用,任務(wù)設(shè)置靈活,統(tǒng)計(jì)功能強(qiáng)大。目前已在湖北師范大學(xué)等在內(nèi)的30多所院校進(jìn)行了試用和推廣,市場(chǎng)主體反響積極。后期,系統(tǒng)將進(jìn)一步提升智慧化程度,引入更多人工智能算法服務(wù)于系統(tǒng)決策支持。
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作者簡(jiǎn)介:孫彩云(1979—),女,江蘇灌云人,碩士研究生,實(shí)驗(yàn)師,研究方向?yàn)橹腔刍畔⑾到y(tǒng)設(shè)計(jì)集成。