The weather stations solution shows a network of automatic weather stations on a map and in a table, and gives each station a page with its month-so-far readings, the wind on a compass, its raw readings and a button that resets the rain counter. It is the simplest of the five solutions: one profile, two pages and one alarm rule.
The model
| Part | In the full installation |
|---|---|
| Network | Weather network (asset kind Area) |
| Devices | Eight stations, each placed in the network, each with a fixed position |
Profile: Weather stations · Station
Each station reports the average, minimum and maximum of its reporting period for wind, and the current values for the rest.
| Key | Label | Unit | Range |
|---|---|---|---|
air_temp | Air temperature | °C | −20 to 50 |
air_hum | Air humidity | % | 0 to 100 |
baro_pressure | Pressure | hPa | 950 to 1,050 |
rain_intensity | Rain intensity | mm/h | 0 to 50 |
acc_rainfall | Accumulated rain | mm | 0 to 400 |
wind_speed_avg | Wind speed (average) | m/s | 0 to 40 |
wind_speed_min | Wind speed (minimum) | m/s | 0 to 40 |
wind_speed_max | Wind speed (gust) | m/s | 0 to 60 |
wind_dir_avg | Wind direction (average) | ° | 0 to 360 |
wind_dir_min | Wind direction (minimum) | ° | 0 to 360 |
wind_dir_max | Wind direction (maximum) | ° | 0 to 360 |
rain_reset | Reset the rain counter | The time the counter was last reset | |
lat, lng | Latitude, Longitude |
Units, decimals and ranges come from the profile’s telemetry keys, not from the cards. A station that reports other units (for example pressure in pascals or speeds in mm/s) should be converted once in the profile’s root flow, not card by card. See Derived values.
Alarm rule: one, device_offline (“name stopped reporting”), Warning, after 3,600 seconds (one hour) without a message. Add threshold rules yourself if you need them, for example a gust warning on wind_speed_max; see Alarm rules on device profiles.
Command: Reset the rain counter (method scada.set_value, tier Basic). It zeroes the station’s accumulated rain and rain duration counters, which cannot be restored. The station answers and reports the time of the reset in rain_reset.
The readings are stored by your organisation’s default root flow. The solution has no flow of its own.
The board
The board Weather stations opens on the last day.
Stations (main page)
| Card | Shows |
|---|---|
| Stations | Station, temperature, humidity, wind, rain total and last reading. Sorted A to Z, ten a page, search, columns, export. A row or its Open button opens the station. |
| Stations on the map | Each station coloured by temperature: Cold below 5 °C, Mild 5 to 30 °C, Hot above 30 °C. A marker opens the station. |
Station (hidden page)
| Card | Shows |
|---|---|
| Eight “this month so far” cards | Air humidity, Wind speed (average), Air temperature, Pressure, Wind speed (gust) (green to 10.8 m/s, amber to 17.2, red above), Wind speed (minimum), Rain intensity, Accumulated rain. Each shows the line of the readings’ averages since the start of the month, the latest average, its change and when it was updated. |
| Wind direction | The compass symbol on the average direction, with the average speed |
| Wind direction range | Average, minimum and maximum direction |
| Reset the rain counter | The reset button |
| Last reset | “Rain counter last reset”: the time the station reported in rain_reset |
| Readings | The station’s readings over the board window: a row per time stamp, newest first, ten a page, search, columns, export |
| Alarms of this station | The station’s alarms |
The month-so-far cards read hourly figures, because a month is longer than the raw window. A card keeps its newest 500 points; its span text says which period it covers. See Aggregates and rollups.
The readings table turns the series into rows with a compute script and keeps at most 2,000 rows, newest first. For a longer export use the history API; see Exporting data.
Reset the rain counter
- Open the station’s page.
- Select Reset the rain counter.
- Confirm: “Reset the accumulated rain of this station? It cannot be restored.” Select Reset.
The board says Reset sent to the station once the command is queued, or The reset did not reach the station with the reason. An offline station fails at once: the command is not kept for later. When the station has done it, Last reset shows the new time.
Who may press it is decided by the basic command permission (iot_rpc.send.basic, User by default). To keep viewers from resetting, give them a group without that permission. See Groups and permissions.
What to check with your own stations
| Check | Why |
|---|---|
| Your stations send the keys above, in these units | The cards and the map read these exact keys |
A station sends lat and lng once, or you set them | Without a position it is not on the map |
Your station understands scada.set_value with key: rain_reset | Otherwise the reset button cannot work: change the command to one your station knows, or remove the button |
Text in a key (for example a direction as "SW") | Text has no chart history; send degrees. See Numbers, text and true/false values |