Information
Table Of Contents
- A. Overview
- 1. Getting started
- 1.1 The BME688 Gas Sensor
- 1.2 Example: Coffee vs. Normal Air
- 1.3 A Few Things To Keep In Mind
- 1.4 Step 1: Record Normal Air
- 1.5 Step 2: Record Espresso Coffee
- 1.6 Step 3: Record Normal Air Again
- 1.7 Step 4: Record Filter Coffee
- 1.8 Step 5: Import & Label The Data
- 1.9 Step 6: Create New Algorithm and Classes
- 1.10 Step 7: Train And Evaluate The Algorithm
- 1.11 Step 8: Export The Algorithm
- 1.12 Conclusion
- 2. Introduction
- 2.1 What is it about? – An analogy
- 2.2 Why the BME688?
- 2.3 What is a use case for a gas sensor?
- 2.4 What is special about the BME688 gas sensor?
- 2.5 How can I evaluate BME688 performance for a specific use case?
- 2.6 How can I use the results for my product development?
- 3. Glossary
- 3.1 Sensor Board
- 3.2 Measurement Session
- 3.3 Algorithm
- B. Process Steps
- 1. Configure Board
- 1.1 Overview
- 1.2 Board Type
- 1.3 Board Mode
- 1.4 Heater Profile
- 1.5 Duty Cycle
- 1.6 Board Layout
- 2. Record Data
- 2.1 Overview
- 2.2 Start recording
- 2.3 During recording
- 2.4 End recording
- 3. Import Data
- 3.1 Overview
- 3.2 Data Overview
- 3.3 Board ID
- 3.4 Board Type
- 3.5 Board Mode
- 3.6 Session Name
- 3.7 Session Date
- 3.8 Specimen Data
- 4. Collect Specimens
- 4.1 Overview
- 4.2 Label
- 4.3 Comment
- 4.4 Session
- 4.5 Start & End Time
- 4.6 Duration
- 4.7 Cycles Total
- 4.8 Cycles Dropped
- 4.9 Remaining Cycles
- 4.10 Board Configuration
- 4.11 Board ID
- 4.12 Board Type
- 4.13 Board Mode
- 4.14 Show Configuration
- 5. Train Algorithms
- 5.1 Overview
- 5.2 Name
- 5.3 Created
- 5.4 Classes
- 5.5 Class Name & Color
- 5.6 Common Data
- 5.7 Data Balance
- 5.8 Data Channels
- 5.9 Neural Net
- 5.10 Training Method
- 5.11 Max. Training Rounds
- 5.12 Data Splitting
- 6. Evaluate Algorithms
- 6.1 Overview
- 6.2 Confusion Matrix
- 6.3 Accuracy
- 6.4 Macro-averaged F1 Score
- 6.5 Macro-averaged False Positive Rate
- 6.6 Training Data
- 6.7 Test Data
- 6.8 Additional Testing
- 2.1
Bosch Sensortec | BME AI-Studio Documentation 24 | 49
Modifications reserved | Data subject to change
without notice Document number: BST-BME688-AN001-00
Review heater profiles
Once you have selected your desired heater profiles, you will see them in the corresponding table. To quickly remove
heater profiles from the list, you can click on X.
Please note
If you have chosen "Sensor board Default HP/RDC" for board mode you cannot choose any heater profile. The
standard profile is selected automatically.
Individual heater profiles
In the current version of BME AI-Studio, you can choose pre-defined heater profiles. In a future release, we plan to have
the possibility of defining individual heater profiles.
1.5 Duty Cycle
In this section, you can choose the duty cycles to be used in the sensor board configuration.
Select duty cycles
In order to make a selection of duty cycles, click on Select Duty Cycles ... and choose the desired duty cycles from
the list. You can select multiple duty cycles, if you have chosen "Duty Cycle Exploration" as board mode. You can select
only one duty cycle, if you have chosen "Heater Profile Exploration" as board mode. Each duty cycle can be viewed with
its specific number of scanning cycles and sleeping cycles and a schematic.
Additionally, you can see the percentage of scanning cycles within one iteration of a duty cycle. E.g. a 25% value means
that for a quarter of the overall time the sensor is in scanning mode. This ratio also translates to the estimated energy
consumption.
Maximum number of duty cycles
The maximum number of duty cycles (in Duty Cycle Exploration) is given by the board type:
BME board x8 can be configured with maximum four duty cycles
The table shows you the selected duty cycles. By clicking on X you can easily remove duty cycles from the list.
Individual duty cycles
In the current version of BME AI-Studio, you can choose pre-defined duty cycles. In a future release, we plan to have
the possibility of defining individual duty cycles.