Data collected from a smart streetlight pilot in Tampere. About 400 smart
streetlights were piloted in the Viinikka area between 2019 and 2022. Each
individual streetlight provided data such as electrical measurements, illuminance
level and pole angle. These streetlights could also then be controlled
individually. See the
CityIoT project for
general information about how the measurements are stored and can be used.
Data model
The data model uses entity types from the official FIWARE streetlighting data
model with some modifications and also custom entity types. The used entity
types are the following.
- Streetlight:
Used to represent the individual streetlights. Some new attributes were added
for example, voltage, intensity, activePower, and poleAngleDrift.
- StreetlightControlCabinet:
Represents streetlight control cabinets which control a group of individual streetlights.
- AmbientLightSensor: Custom entity type for representing light sensors that are
related to SwitchingGroups.
- SwitchingGroup: Represents all the 400 streetlights and 6 streetlight control
cabinets. Contains, for example, the common configuration for the group.
Notes about the data
- This data was originally collected into a different FIWARE platform operated
by the company who implemented the pilot. Using the subscription system of the
Orion context broker, it was then transferred also to the Tampere University
FIWARE platform.
- The data contains some initial test entities that have no data or only little
data from beginning of 2019. These entities were replaced with different ones
later. So for example although there are 400 streetlights, there are 984
Streetlight entities used to represent them during various phases of the
pilot.
- The SwitchingGroup entity with id GroupAllOLC has references to the
Streetlight and StreetlightControlCabinet entities that were in use at
least from 2020-05-11 until the end of the pilot.
- Many entities that were in use until the end of the pilot were created on
2019-05-17.
- The time interval varies for the different attributes. For example, it is about
1.5 minutes for poleAngleDrift of Streetlight entities and energyConsumed of
StreetlightControlCabinet entities. It is about 15 minutes for
illuminanceLevel and powerState of Streetlight entities. It is about one hour
for intensity, voltage and activePower of streetlight entities.
- The Streetlight entities have references to StreetligthGroup entities but
these entities do not exist.
Accessing the data
The data is stored in the Tampere University CityIoT platform. The used FIWARE
service is streetlight and all entities there are under the service path
/Tampere/viinikka.
Examples
Get the most recent data about control cabinet KV-0131
curl -X GET "https://tlt-cityiot.rd.tuni.fi/orion/v2/entities/KV-0131" --header "Fiware-Service: streetlight" --header "Fiware-Servicepath: /Tampere/viinikka" --header "apikey: your_apikey"
find out the streetlight entity ids which has KV-0131 as a controller cabinet:
curl -X GET "https://tlt-cityiot.rd.tuni.fi/orion/v2/entities?limit=1000&type=Streetlight&q=refStreetlightControlCabinet~=KV-0131&attrs=id" --header "Fiware-Service: streetlight" --header "Fiware-Servicepath: /Tampere/viinikka" --header "apikey: your_apikey"
Get activePower measurements for Streetlight KV-0121-318 on 21st of May 2019.
curl -X GET "https://tlt-cityiot.rd.tuni.fi/quantumleap/v2/entities/KV-0121-318/attrs/activePower?fromDate=2019-05-21T00:00:00Z&toDate=2019-05-21T23:59:59Z" --header "Fiware-Service: streetlight" --header "Fiware-Servicepath: /Tampere/viinikka" --header "apikey: your_apikey"
