# 页面实时数据来源
1. 页面空压实时数据如下：
   图1空压实时数据   
   ![](https://support.huaweicloud.com/bestpractice-ocsmartcampus/zh-cn_image_0000002496369409.png "点击放大") 
2. 空压指标数据来源"查询空压站的属性快照" 这个接口，举例说明接口返回结果如下，空压站这些指标对应就是响应结果中对应的字段值：
   ```
   {
       "site_id": "196618b55e1b070636c64409",
       "properties": {
           "compressorSys": {
               "systemActivePower": 240.0, //总瞬时功率
               "systemCumulativeElectricity": 33000.0, //累计耗电量
               "systemCOP": 0.20833333333333334
           },
           "mainPipe": {
               "sumInstantaneousFlow": 50.0, //总瞬时流量
               "sumCumulativeFlow": 10000.0, //总累积流量
               "meanExhaustPressure": 0.62 //平均供气压力
           },
           "compressor": {
               "runningNumber": 0,
               "sumActivePower": 225.0,
               "sumCumulativeElectricity": 30000.0
           },
           "coldDryer": {
               "runningNumber": 3,
               "sumActivePower": 15.0,
               "sumCumulativeElectricity": 3000.0
           },
           "suctionDryer": {
               "runningNumber": 0,
               "sumActivePower": 0.0,
               "sumCumulativeElectricity": 0.0
           },
           "calendar": {
               "isWorkingDay": true,
               "isWorkingDayAsInt": 1
           },
           "branchPipe": {
               "minEndPressure": 0.6, //末端最小压力
               "maxEndPressure": 0.6,
               "meanEndPressure": 0.6
           }
       }
   }
   ```
   
3. 下面空压瞬时功率历史数据是调"查询空压站的属性历史信息"接口获取的，格式如下： 对应请求体格式如下，
   ```
   {
       "end_time": "2025-05-13T07:38:38.464Z",
       "group_duration": "PT5M",
       "limit": 1000,
       "properties_keys": [
           "compressorSys/systemActivePower"
       ],
       "start_time": "2025-05-12T16:00:00.464Z"
   }
   ```
   响应结果如下：
   ```
   {
       "contents": [
           {
               "create_time": "2025-05-12T16:00:00.000Z",
               "properties": {
                   "compressorSys/systemActivePower": 240
               }
           },
           {
               "create_time": "2025-05-12T16:05:00.000Z",
               "properties": {
                   "compressorSys/systemActivePower": 240
               }
           },
           {
               "create_time": "2025-05-12T16:10:00.000Z",
               "properties": {
                   "compressorSys/systemActivePower": 240
               }
           },
           {
               "create_time": "2025-05-12T16:15:00.000Z",
               "properties": {
                   "compressorSys/systemActivePower": 240
               }
           }
       ],
       "site_id": "196618b55e1b070636c64409"
   }
   ```