46 lines
3.2 KiB
Markdown
46 lines
3.2 KiB
Markdown
# Empatica Blood Volume Pulse
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Sensor parameters description for `[EMPATICA_BLOOD_VOLUME_PULSE]`:
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|Key | Description |
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|----------------|-----------------------------------------------------------------------------------------------------------------------------------
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|`[CONTAINER]`| Name of the CSV file containing blood volume pulse data that is compressed inside an Empatica zip file. Since these zip files are created [automatically](https://support.empatica.com/hc/en-us/articles/201608896-Data-export-and-formatting-from-E4-connect-) by Empatica, there is no need to change the value of this attribute.
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## DBDP provider
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!!! info "Available time segments and platforms"
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- Available for all time segments
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!!! info "File Sequence"
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```bash
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- data/raw/{pid}/empatica_blood_volume_pulse_raw.csv
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- data/raw/{pid}/empatica_blood_volume_pulse_with_datetime.csv
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- data/interim/{pid}/empatica_blood_volume_pulse_features/empatica_blood_volume_pulse_{language}_{provider_key}.csv
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- data/processed/features/{pid}/empatica_blood_volume_pulse.csv
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```
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Parameters description for `[EMPATICA_BLOOD_VOLUME_PULSE][PROVIDERS][DBDP]`:
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|Key | Description |
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|----------------|-----------------------------------------------------------------------------------------------------------------------------------
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|`[COMPUTE]` | Set to `True` to extract `EMPATICA_BLOOD_VOLUME_PULSE` features from the `DBDP` provider|
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|`[FEATURES]` | Features to be computed from blood volume pulse intraday data, see table below |
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Features description for `[EMPATICA_BLOOD_VOLUME_PULSE][PROVIDERS][DBDP]`:
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|Feature |Units |Description|
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|-------------------------- |-------------- |---------------------------|
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|maxbvp |- |The maximum blood volume pulse during a time segment.
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|minbvp |- |The minimum blood volume pulse during a time segment.
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|avgbvp |- |The average blood volume pulse during a time segment.
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|medianbvp |- |The median of blood volume pulse during a time segment.
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|modebvp |- |The mode of blood volume pulse during a time segment.
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|stdbvp |- |The standard deviation of blood volume pulse during a time segment.
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|diffmaxmodebvp |- |The difference between the maximum and mode blood volume pulse during a time segment.
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|diffminmodebvp |- |The difference between the mode and minimum blood volume pulse during a time segment.
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|entropybvp |nats |Shannon’s entropy measurement based on blood volume pulse during a time segment.
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!!! note "Assumptions/Observations"
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For more information about BVP read [this](https://support.empatica.com/hc/en-us/articles/360029719792-E4-data-BVP-expected-signal). |