1. Historical Data

Historical Data is the time-range archive view of Realtime Data. It lets you query all past records for a specific device within a chosen time window, displayed as either a trend chart or a data table. Use it for trend analysis, anomaly tracing, and raw data export.

Data Flow

flowchart LR
    DEV[LoRaWAN Device]:::dim
    GW[Gateway]:::dim
    NS[NS Data\nRaw MAC frames]:::dim
    AS[AS Data\nDecrypted structured payload]:::dim
    RT[Realtime Data\nThing-model values]:::dim
    HIS[Historical Data\nTime-range archive]:::highlight

    DEV -->|Radio signal| GW
    GW -->|SEMTECH UDP| NS
    NS -->|LoRaWAN decrypt| AS
    AS -->|Thing model parser| RT
    RT -->|Persist| HIS

    classDef highlight fill:#1a6fcf,color:#fff,stroke:#1a6fcf
    classDef dim fill:#f0f0f0,color:#888,stroke:#ddd

Historical Data is sourced from the same persisted records as Realtime Data. If Realtime Data is empty for a device, Historical Data will be empty too.

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1.1. How to Access

In the Realtime Data list, click the History Data button at the end of a device row to open that device's historical query page.

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1.2. Chart View

Displays each selected property as a line chart over the chosen time range. Toggle individual properties on or off using the checkboxes above the chart.

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1.3. Table View

Lists every record in chronological order with all property values per row. Useful for precise point-in-time lookup or exporting raw data.

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1.4. Query Tips

• Time range: Keep single queries under 7 days — large result sets slow down page rendering.
• Property filter: Hiding unused properties in chart view improves render speed.
• Data gaps: If records are missing for a period, check NS Data to confirm whether uplinks were received during that window.