library(DBI)
library(RMySQL)
library(ggplot2)
#library(sqldf);library(gsubfn);library(proto);library(RSQLite)
conn<-dbConnect(MySQL(),dbname='transport',username='root',password='',host='127.0.0.1',port=3306)
dbSendQuery(conn,"SET NAMEs utf8")
dbGetQuery(conn,"SET character_set_server='utf8'")
dbGetQuery(conn,"SET character_set_results='utf8'")
mysql_daoru<-"SELECT 车牌号,承运商,调度单出发地,调度单目的地,省份,count(序号) as 车次,SUM(数量) as 发运量,concat(year(实际出发时间),if(length(month(实际出发时间))=1,concat(0,month(实际出发时间)),month(实际出发时间)))as YW from diaodudan where 调度单状态='已运抵' and right(调度单出发地,1)<>'库' and left(车牌号,2) in (select 车牌字母 from cheliangshudi) group by 车牌号,YW order by YW desc"
data<-dbSendQuery(conn,mysql_daoru)

最后一句的时候提示
Error in .local(conn, statement, ...) :
  could not run statement: Invalid utf8 character string: '\xB3\xB5'


直接用
data<-dbReadTable(conn,"table1")
提示
Error in .local(conn, statement, ...) :
  could not run statement: Invalid utf8 character string: '\xB3\xB5'


我的R version 3.4.0 (2017-04-21)请各位大神帮帮我怎么才能正常读入，问题出在哪里