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    SOLVED

    Probably a bug in BME688/BSEC 2.0 with 4 classes

    Probably a bug in BME688/BSEC 2.0 with 4 classes

    Danj
    Member

    We tried to use all 4 classes in the BME AI-Studio:
    Class A: Air
    Class B: Coffee
    Class C: Tea
    Class D : Flower
    Then in our application with BSEC Library we got for Air:
    BSEC_OUTPUT_GAS_ESTIMATE_1=0.00
    BSEC_OUTPUT_GAS_ESTIMATE_2=0.99
    BSEC_OUTPUT_GAS_ESTIMATE_3=0.00
    BSEC_OUTPUT_GAS_ESTIMATE_4=0.00
    for Coffee the same:
    BSEC_OUTPUT_GAS_ESTIMATE_1=0.00
    BSEC_OUTPUT_GAS_ESTIMATE_2=0.99
    BSEC_OUTPUT_GAS_ESTIMATE_3=0.00
    BSEC_OUTPUT_GAS_ESTIMATE_4=0.00
    It looks like BSEC_OUTPUT_GAS_ESTIMATE_1 doesn't change at all.

    If we remove classes C and D from the algorithm, we get for Air:
    BSEC_OUTPUT_GAS_ESTIMATE_1=0.99
    BSEC_OUTPUT_GAS_ESTIMATE_2=0.00
    and for Coffee:
    BSEC_OUTPUT_GAS_ESTIMATE_1=0.00
    BSEC_OUTPUT_GAS_ESTIMATE_2=0.99
    this is correct.

    BME AI Studio: 1.6.0
    BME68x: 4.4.6
    BSEC: 2.0.6.1

     

    5 REPLIES 5

    BSTRobin
    Community Moderator
    Community Moderator

    Since there was no feedback for a long time, we close this topic first. You could update feedback in the future if you have.

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