Downlink Commands for Query

This section describes the downlink commands for querying the device data.

Query Current Data

Name Example
query_device_status Enquiry the periodic report.
{
  "query_device_status": "yes"
}

Query Historical Data

Prerequisites: Data Storage was enabled and device time is synced.

Name Example
retrieve_historical_data_by_time Query data for a specified time point.
{
  "retrieve_historical_data_by_time": {
    "time": 1697445000  //Unix timestamp, unit: s
  }
}
retrieve_historical_data_by_time_range Query data from 1697445000s to 1697445600s.
{
  "retrieve_historical_data_by_time_range": {
    "start_time": 1697445000,  //Start Unix timestamp, unit: s
    "end_time": 1697445600  //End Unix timestamp, unit: s
  }
}
stop_historical_data_retrieval Stop the data query report.
{
  "stop_historical_data_retrieval": "yes"
}
data_storage_settings.retrieval_interval The query report interval is 1200s.
{
  "data_storage_settings": {
    "retrieval_interval": 1200  //Unit: s, range: 30-1200, default: 60
  }
}

Reply description: Historical Data Packet