加跟踪算法，进程间通讯加sleep

panlei

2019-12-05 cbe73e3706a6494b506febd0e4a51ce1096aae1f

 ruleserver/server.go

@@ -43,6 +43,8 @@
      select {
      case dbMsg := <-videotapChan:
         publishMessage(dbMsg)
      default:
         time.Sleep(time.Second)
      }
   }
}