Environmental sensor included in the Cisco Catalyst 9136/9166 Access Point.
What does the environmental sensor included in the Cisco Catalyst 9136/9166 Access Point record and track?
The ability to record and track various aspects of air quality in your buildings. The ambient air quality sensors in the 9136 / 9166 provide the capability to monitor various aspects of air quality, including:- Calculated air quality metric ("IAQ")
- Temperature (degrees C)
- Humidity (%)
- ECO2 (estimated CO2 - calculated based on TVOC)
- ETOH (estimated ethanol)
- Total Volatile Volatile Compounds ("TVOC", PPB)
- And thirteen different RMOX values
Technology overview
The key components in the implementation of this functionality are:
- Cisco Catalyst 9800 WLC with code 17.8 or newer (currently in Beta)
- Cisco Catalyst 9136 / 9166 WiFi-6e Access Point with integrated ambient air quality sensor
- One TIG stack (Telegraf, InfluxDB and Grafana)
- Access point sensors are only enabled since IOS-XE v17.8, so this is our minimum starting point in terms of software.
The TIG stack:
"TIG" is a term for three products commonly used together to provide dashboard type services; Telegraf, InfluxDB and Grafana. This is how we will consume the data generated by the access points.- Telegraf is a small and popular piece of software that we use to receive our streaming data and sends that data to the database, InfluxDB.
- InfluxDB is a popular time series database. A time series database is one that marks everything with a timestamp and allows you to run time-based queries on the data it contains.
- Grafana is a popular dashboard software that allows you to query a time series database and draw various graphs and charts based on the returned data.
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