1、修改no2,ox,o3计算公式；2、修改vocs导出表格中单位为ppm；

tuoheng-service/tuoheng-admin/src/main/java/com/tuoheng/admin/constant/SystemConstant.java

      * 表格表头集1
      */
     String[] EXCEL_SECOND_NAME = {"采样点时间","海拔高度m","经度",
-            "纬度","SO2 μg/m³","CO mg/m³","NO2 μg/m³","O3 μg/m³","VOCS μg/m³","PM2.5 μg/m³","PM10 μg/m³",
+            "纬度","SO2 μg/m³","CO mg/m³","NO2 μg/m³","O3 μg/m³","VOCS ppm","PM2.5 μg/m³","PM10 μg/m³",
             "设备序列号","序号"};
 
     /**

tuoheng-service/tuoheng-admin/src/main/java/com/tuoheng/admin/service/airData/syncdata/SyncAirDataService.java

         String odorOu = this.getValue(airDataMap, "Odor OU");   // 恶臭气体
         String hrch4 = this.getValue(airDataMap, "[HR]CH4(ppm)");   // [HR]甲烷(ppm)
 
+        ox = this.getOx(ox);
+        no2 = this.getNo2(no2);
+        String o3 = this.getO3(ox, no2);
+
         airData.setCl2(cl2);
         airData.setCo(co);
         airData.setCo2(co2);
         airData.setNo(no);
         airData.setOdorOu(odorOu);
         airData.setHrch4(hrch4);
-        airData.setO3(this.getO3(ox, no2));
+        airData.setO3(o3);
         airData.setCreateTime(DateUtils.now());
         airData.setCreateUser("0");
         Integer count = airDataMapper.insert(airData);
         }
     }
 
-    private String getO3(String ox, String no2) {
-        String o3 = "";
+    private String getOx(String ox) {
         if (StringUtils.isEmpty(ox)) {
-            if (StringUtils.isNotEmpty(no2)) {
-                o3 = "-" + no2;
-            }
+            return "0.0";
         } else {
-            if (StringUtils.isNotEmpty(no2)) {
-                Double o3d = Double.parseDouble(ox) - Double.parseDouble(no2);
-                o3 = String.valueOf(o3d);
-            } else {
-                o3 = ox;
-            }
+            Double value = Double.valueOf(ox);
+            value = value * 1000 * 48.00 / 22.4;
+            return String.valueOf(value);
+        }
+    }
+
+    private String getNo2(String no2) {
+        if (StringUtils.isEmpty(no2)) {
+            return "0.0";
+        } else {
+            Double value = Double.valueOf(no2);
+            value = value * 1000 * 46.01 / 22.4;
+            return String.valueOf(value);
         }
-        return o3;
     }
 
     private String getSo2(String so2) {
         }
     }
 
+    private String getO3(String ox, String no2) {
+        Double o3d = Double.parseDouble(ox) - Double.parseDouble(no2);
+        String o3 = String.valueOf(o3d);
+        return o3;
+    }
+
 }