BIOPAC Systems, Inc. BioNomadix Logger Manuale utente

Doc90.v3

BioNomadix Logger User Manual

Wearable Data Logging System for use with BioNomadix Transmitters

and AcqKnowledge Software

For Life Science Research Applications

42 Aero Camino, Goleta, CA 93117

Tel (805) 685-0066, Fax (805) 685-0067

™

BioNomadix Logger™ User Guide Page 2 of 28

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TABLE OF CONTENTS

System Overview.............................................................................................................................................................................3

How to Use This Manual..........................................................................................................................................................3

What is the BioNomadix Logger?............................................................................................................................................3

BioNomadix Logger vs. Standard BioNomadix Transmitter-Receiver Pairs...........................................................................3

Included Components...............................................................................................................................................................3

Logger Battery..........................................................................................................................................................................3

Logger Interface and Button Controls......................................................................................................................................4

Button Icons .............................................................................................................................................................................4

Charging and Powering on the Logger.....................................................................................................................................4

Sleep Mode and Automatic Power-Off....................................................................................................................................5

Resetting the Logger ................................................................................................................................................................5

The Main Screen ......................................................................................................................................................................5

Data Setup Options...................................................................................................................................................................5

Summary Screen Status and Warnings.....................................................................................................................................6

Using the Internal Accelerometer.............................................................................................................................................7

Tap Mode .................................................................................................................................................................................8

Accelerometer Assisted Synchronization.................................................................................................................................9

Pairing the Logger with a BioNomadix Transmitter................................................................................................................9

Unpairing the Logger from a BioNomadix Transmitter.........................................................................................................10

Paired Transmitter Menus ......................................................................................................................................................10

Transmitter Options................................................................................................................................................................10

Previewing Data.....................................................................................................................................................................11

Choosing an Acquisition Rate................................................................................................................................................11

Setting an Acquisition Length................................................................................................................................................11

Starting an Acquisition Manually...........................................................................................................................................12

Starting an Acquisition at a Preset Time ................................................................................................................................12

Preflight Setting......................................................................................................................................................................13

Checking for RF Interference during an Acquisition .............................................................................................................14

Using Multiple Loggers in Close Proximity...........................................................................................................................14

Optimizing Physical Configuration for Best Recordings.......................................................................................................14

Placing Event Markers during an Acquisition........................................................................................................................15

Manually Stopping an Acquisition.........................................................................................................................................15

Adding an Audio Note ...........................................................................................................................................................15

Configure Menu .....................................................................................................................................................................15

Setting the Date and Time......................................................................................................................................................16

Time Zone Adjustment...........................................................................................................................................................17

Daylight Savings Time Adjustment .......................................................................................................................................18

Configuring the Microphone..................................................................................................................................................19

Lock Screen............................................................................................................................................................................19

Setting other Configuration Options.......................................................................................................................................19

Return to Main Screen Shortcut.............................................................................................................................................19

Common “Options” Shortcut .................................................................................................................................................20

Importing Logged Data into AcqKnowledge.........................................................................................................................21

AcqKnowledge Menu Logger Options...................................................................................................................................22

Import Logs from Disk Option...............................................................................................................................................23

BioNomadix Logger User Alarms..........................................................................................................................................23

Setting Up a User Alarm........................................................................................................................................................24

Reviewing Imported Logger Events and Audio Notes...........................................................................................................24

Supported Transmitter Data ...................................................................................................................................................25

BioNomadix Logger Specifications .......................................................................................................................................25

Logger Troubleshooting.........................................................................................................................................................26

Intended Use..................................................................................................................................................................................28

Warranty .......................................................................................................................................................................................28

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System Overview

How to Use This Manual

This manual provides an overview of how to use the BioNomadix Logger with BioNomadix Transmitters (BN-TX)

and how to set up the system in AcqKnowledge software for data import. The specifications and diagrams are

intended to assist you in understanding the capabilities of the BioNomadix Logger system. This document is not

intended as a service manual. Only authorized BIOPAC employees and representatives are qualified to repair any

component of the system. All rights of the warranty for said component are voided if any other party modifies any

component without the written consent of BIOPAC.

What is the BioNomadix Logger?

The BioNomadix Logger (BN-Logger) is a battery-operated, wearable physiological recording platform capable of

digitally storing signals from up to three BioNomadix Transmitters for future transfer into AcqKnowledge software.

The Logger has a 2.4” backlit LCD screen that presents various menu options controllable by four buttons directly

under the screen, and aligned with menu-specific navigation icons. The Logger can log data for extended periods up

to 24 hours. In addition to supporting configuration of up to three paired BioNomadix Transmitters, the Logger has

an internal three-axis accelerometer for recording which includes a “Tap” Mode for haptic input. The Logger can be

ordered as a stand-alone device, or as a system with a selection of BioNomadix Transmitters and AcqKnowledge

software.

BioNomadix Logger vs. Standard BioNomadix Transmitter-Receiver Pairs

The BioNomadix Logger is capable of wirelessly recording and storing data independently of a computer, software

or BIOPAC MP160/150 Data Acquisition Unit. By comparison, the standard BioNomadix wireless Transmitter-

Receiver pairs require access to a BIOPAC MP160/150 unit and AcqKnowledge software for recording of live data

only. Data cannot be stored (logged) for future import on standard BioNomadix Transmitter-Receiver modules, and

the physical range on the BioNomadix Transmitter-Receiver pairs is also limited to 10 meters line-of-sight.

By contrast, the BioNomadix Logger, can be paired with up to three BioNomadix Transmitters, allowing the subject

full freedom to wander out of the lab, engage in exercise, eat a meal, and go home and sleep while still logging

uninterrupted data. This greatly extends the capability of researchers to collect continuous, wide-ranging and

accurate data from subjects ranging outside the confines of the lab environment. Since most of the BioNomadix

Transmitters support collection of dual signals, up to 6 physiological signals can be monitored per session. The only

restriction is that the BioNomadix Transmitters must be in close proximity to the BioNomadix Logger. To facilitate

this, BIOPAC recommends wearing the BioNomadix stretch-mesh shirt (BN-SHIRT,) which is specially designed to

comfortably hold the various mobile devices. (A belt case is included with the Logger.)

Included Components

BioNomadix Logger unit with 2.4” LCD screen and external

antenna

Micro-USB B to USB A cable for data transfer and charging

AC Charger

Belt case for securing unit

Logger Battery

The Logger battery can power the unit for a maximum of 24 hours of continuous data logging. To charge the Logger,

connect the Logger’s micro-USB connector from the Logger and the other end to the AC charger or a high-power

USB computer port. If the battery becomes fully discharged after heavy use, it’s recommended that the unit be

recharged via theAC charger instead of the USB port. Otherwise, the Logger may not power on properly.

When the battery power drops below 5% capacity and the USB cable is not attached, the alarm (and vibration)

warning will sound continuously until the Logger is plugged in for charging. The alarm may be enabled or disabled

by the user. By default it’s enabled.

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The Logger battery is integrated internally and is not user replaceable. For battery replacement, contact BIOPAC.

To store the Logger for long periods of time, fully charge the battery using theAC charger and power off the Logger

to improve long-term battery performance.

Logger Interface and Button Controls

The various Logger options, such as pairing with BioNomadix Transmitters, starting/stopping recordings, setting

audible alarms, adding markers, recording voice memos are controlled via selectable onscreen menus and accessed

via the four control buttons on the face of the unit. The screen icons and functions assigned to the physical buttons

will vary slightly depending on which Logger menu is active. The Logger LCD screen is not a touchscreen, but the

four-button interface is very simple and the menus designed to be intuitive and easily navigable. The Main Screen

navigation button icons consist of (in order) Home, up-navigation, down-navigation, and “select.” (checkmark)

Button Icons

Home Button – aligns with left button in Main Screen

only. Holding down for two seconds brings up an Options

menu for setting the display to maximum brightness,

restoring factory defaults or powering off.

Back button. Navigates back to previous menu screen.

Aligns with first (left) button in all screens except the

Main Screen.

Navigation arrow for moving up the selected menu

screen. Aligns with second button.

Navigation arrow for moving down the selected menu

screen. Aligns with third button.

Navigation arrow for moving left for horizontal selections.

Aligns with second button in Date & Time screens.

Navigation arrow for moving right for horizontal

selections. Aligns with third button in Date & Time

screens.

Advances number selections, such as those found in the

Date & Time screens. Aligns with fourth button.

Selection button for toggling through available options.

Found in the Data Setup, Configuration and paired

transmitter menus. Aligns with fourth button.

Select button. Accepts selected menu item or advances

to next screen menu. Aligns with fourth button.

NOTE: During live data acquisition, the button icon status changes to allow for addition of event markers and

recorded audio notes into the session. See “Placing Event Markers” and “Audio Notes” see page 15 for details.

Charging and Powering on the Logger

Charge the Logger by connecting the micro USB B connector end of the charging cable to the Logger output port (on

top edge of unit) and connect the USB Aend to the AC wall charger (included). Then power on the Logger by

holding down the leftmost button on the Logger’s front panel for a few seconds. The Logger welcome screen will

appear, followed by the Main Menu. Use the AC wall charger to charge the Logger, not a USB port.

When fully charged, the green battery icon in the upper right of the Main Menu screen will indicate “100%.”

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Sleep Mode and Automatic Power-Off

To conserve battery power, the Logger screen will automatically dim and go into a “sleep” mode if no button activity

is initiated for a period of 30 seconds. To wake the Logger, press any button and the most-recently used Logger

screen will be displayed. If no Logger activity is registered for a default period of 30 minutes, the Logger will

automatically power off. If desired, the time interval defaults for sleep or power-off mode can be changed in the

Logger “Configure” settings. (See page 15.)

While acquisitions are in progress the screen will dim, however the Logger will not power off until after the

acquisition is completed.

Resetting the Logger

The Logger can be reset by pressing the recessed Reset button located opposite the USB port. Use an unbent paper

clip to activate the button.

The Main Screen

The Main screen appears by default when the Logger is powered on, and provides access to the following menus:

Data Setup – sets options for the internal accelerometer,

add/remove transmitters, tap mode options, recording duration and

transmitter frequency channels. (See subsequent table.)

Configure – set the time and date, enable/disable Tap Interface, turn

on/off alarms, speaker/microphone, vibrate, adjust backlight,

display brightness, automatic power-off interval, User Alarms and

USB Wakeup.

Acquire – manual or scheduled data recordings. (See page 12.)

About – displays the following information: Number of logs,

available free memory, and firmware version.

Data Setup Options

Selecting the Main Screen > Data Setup menu screen displays the following setup menus.

Data Setup Menu Available

Options Description Available Settings

Summary --- Displays a screen showing the transmitter

connection status along with other

parameters, including type, acquisition sample

rate, and duration. (See above right figure)

See page 6 for a full

description of various

Summary screen

statuses and warnings.

Check Data Provides visual feedback of accelerometer

motion ---

Data Range Select accelerometer range 2g, 4g, 8g, 16g

Data Rate Select the accelerometer data acquisition

sample rate 100 Hz, 200 Hz, 400

Internal ACCL

Tap Threshold The minimum amount of force required for

Logger to respond to tap input. 1.0-6.0 g, in 0.5g

increments

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Data Setup Menu Available

Options Description Available Settings

Tap Time The maximum amount of time a tap input must

be above the Tap Threshold in order to qualify

as a tap event.

1.25-15 ms, in 1.25 ms

increments.

Tap Latency The wait time between the detection of a first

tap event to the start of the time window

during which a second tap event can be

detected.

20-200 ms, in 20 ms

increments

Tap Window The amount of time after the expiration of

latency time during which a second valid tap

can begin.

20-200 ms, in 20 ms

increments

Add TX Device Screen shows

“Scanning” and

“Pair with this

device?” prompts if

supported BN-TX

device is found.

Scans for an available BioNomadix

Transmitter. ---

Duration Sets specified length for the data recording. 15 sec, 30 sec, 1 min,

5 min, 10 min, 30 min,

1 hr, 2 hrs, 5 hrs, 8 hrs,

12 hrs, 24 hrs

RF Channel Selects the radio channel used to exchange data between the

transmitters and Logger. See page 14. If interference is encountered,

select a different radio channel. If multiple Loggers are used in close

proximity, for best results, each Logger should be set to a unique RF

channel to avoid interference between the Loggers.

Increments of 3

ranging from 2-77.

Summary Screen Status and Warnings

The Data Setup > Summary screen displays a Status column indicating the readiness of the transmitter, and in certain

circumstances, may display a warning to the left of the Status column. The following statuses presented in the

Summary screen:

Status Color Description

“Ready” green Transmitter is on and has established good communication.

“Poor RF” amber Transmitter is on but communication between Logger and transmitter is poor and may be lost. Try

adjusting transmitter positioning.

“Low Bat” amber Transmitter is on but has a low battery level and may not last for the entire acquisition. If possible,

charge transmitter prior to acquisition.

“Lost” red Transmitter cannot be found. Transmitter may be powered off or is out of range of the Logger.

“Tst” red, to the left

of the Status

column

The transmitter is configured to record one of the test signals (e.g. sine wave, square wave)

instead of a biopotential signal. Not necessarily an error if the user is using test signals to verify

quality of a recording transmitter arrangement.

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If an error occurs, the following warnings are displayed in red text in the bottom half of the Summary screen:

Warning Description

“RF Failure!” Problem with the Logger radio. Try another Logger RF channel or contact BIOPAC Support.

“Low Battery!” Logger battery level is low and may not last for the entire acquisition. If possible, charge Logger prior to

acquisition.

“No TX device()s!” No transmitters are paired with the Logger. May not be an error if logging using only the internal

accelerometer.

“Low Memory” The Logger is running out of internal storage space. Delete some logs from the device to free up more

space. (See page 21.)

“Low TX Battery(s)” At least one transmitter has a low battery. Check the Status column.

“Check/Turn TX(s) ON” At least one transmitter is not communicating with the Logger. Check the Status column.

“TX(s) in TEST Mode” At least one tranmitter is recording test signals. May not be an error if testing the transmitter

configuration. Check the Status column.

When waking from sleep to perform a Preflight (see page 13): If any of the above warnings are present, the logger

will beep and/or vibrate continuously until a button is pressed to dismiss the warning.

Using the Internal Accelerometer

Use the Logger’s built-in internal accelerometer function for monitoring activity

and detecting motion. This data is logged with the other transmitter signals being

recorded and can also be imported into AcqKnowledge software for analysis.

Various data ranges and thresholds can be set to adjust the accelerometer

sensitivity.

To access the Internal Accelerometer, highlight this entry in the Data Setup screen

and press the “Select” button. Use the navigation buttons to choose and modify

the Accelerometer settings.

To see a visual sample of the accelerometer motion in progress, select the “Check data” option (see above).

NOTE: Tap Mode (see below) and recording internal accelerometer data cannot be used simultaneously. If the tap

interface is enabled, the raw accelerometer data is unavailable in the log. In order to record the raw internal

accelerometer data into the log, Tap interface must be disabled (Configure > Tap interface).

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Tap Mode

The accelerometer options include “Tap Mode” settings which enable haptic (tapping) feedback to the Logger unit.

Tap Mode is useful when a subject needs to interact with the unit but does not have direct access to the screen

buttons, such as when the Logger unit is inside a shirt pocket. With Tap Mode enabled, Logger functions such as

waking up the unit, inserting markers during acquisition, or initiating 30-second audio memo recordings can be

accomplished by lightly striking or “tapping” the Logger unit. The unit will vibrate/beep briefly in response to the

“tap” input.

Normally, the default Tap Mode settings (Tap Threshold, Tap Time, Tap Latency and Tap Window) are sufficient for

optimal response to the “tap” input. However, it may be necessary in certain cases to adjust these parameters in order

to increase or decrease “tap” sensitivity. These settings are defined on pages 5-6, but the following diagram further

illustrates how the Tap Mode settings are applied:

Tap Mode Settings: Threshold, Time, Latency and Window

With Tap Mode enabled, the following inputs are available:

Unit sleeping 1 tap Wake unit from sleep

During acquisition 1 tap Insert marker into data

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Accelerometer Assisted Synchronization

The Logger can be precisely synchronized with the eye tracking scene camera via the following method.

1. Start the eye tracking and physiology recording.

2. Place the Logger in view of the scene camera and quickly tap the Logger three times.

The internal accelerometer will record the impact and you can later easily identify the onset of the impact in both the

physiology data and the video from the scene camera. The sample rate of the accelerometer is higher than the scene

camera frame rate and, therefore, data can be aligned within accuracy of a single video frame. This accelerometer-

based approach is quite elegant, as it requires no cables or wireless connection methods to connect the Mobita and

eye tracker, thus allowing the researcher to perform synchronization in a very simple and intuitive way.

Pairing the Logger with a BioNomadix Transmitter

The Logger will support pairing with up to three BioNomadix Transmitters. To pair with a transmitter, use the

following steps:

1. In the Logger Main Screen, select “Data Setup” and press the “Select” button.

2. Use the Logger “Data Setup” down-arrow button to scroll to “Add TX device” and press the

“Select” button. The Logger will begin scanning for transmitters to be paired.

3. Power on the BioNomadix Transmitter to be paired and use a pen or pencil to hold down the transmitter’s

“ID” button. The LED on the transmitter will turn solid orange. Continue holding down the ID button until

the Logger displays the “Pairing” screen for the transmitter.

4. The “Pairing” screen for the selected transmitter will be displayed, and the “ID” button may be released on

the transmitter. Press the “Select” (checkmark) button on the Logger to accept pairing with the selected

transmitter.

5. The newly-paired transmitter will appear as a new entry in the “Data Setup” menu. Pairing status and

transmitter battery power is indicated by a colored square to the right of the paired transmitter entry (above).

This square indicates the current battery level of the transmitter (green for full, yellow for half charge, red for

required charging or transmitter is off).

Note: The onscreen battery status light may cycle from red to yellow before becoming green depending on

the battery level of the transmitter.

6. To pair additional devices, use the down-arrow button in Data Setup to scroll to “Add TX device” and repeat

steps 1-4.

NOTE: Paired transmitters are retained in the Data Setup menu when powered off, but with a red square to

indicate the powered-off status. To recover the paired connection, simply turn the transmitter back on.

IMPORTANT: If the transmitters paired to a logger also have a receiver connected to the MP device, the receiver

must be powered off or out of range in order to record data using the data logger. When a transmitter is powered on

or loses communication for two minutes it will begin or repeat its initial search sequence. The initial search sequence

first checks for any receiver. If no receiver is found, the transmitter will then search for a paired data logger.

To start logging data within the same lab as the receiver:

1. Quit the software and turn off your MP device to turn off power to the receiver.

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2. Turn the transmitter off and then back on (or wait two minutes).

3. Power on logger (if off). The transmitter will then be able to communicate with the logger.

Unpairing the Logger from a BioNomadix Transmitter

1. In the Logger Main Screen, select “Data Setup” and press the “Select” button.

2. In “Data Setup,” scroll down to the BN Transmitter entry to be unpaired and press the “Select” button.

3. Scroll down to the “Unpair TX” option in the BN Transmitter menu and press the “Select” button to

bring up the “Unpairing” screen.

4. Press the “Select” button in the “Unpairing” screen to remove the transmitter.

When a transmitter is unpaired, it is removed from the Data Setup menu.

Note: The transmitter does not need to be powered on or physically available for it to be unpaired.

Paired Transmitter Menus

Each paired transmitter will display as a unique entry in the Data Setup menu. With the transmitter selected in the

menu, access advanced options for the paired transmitter by clicking the “Select” button.

Transmitter Options

To access configurable options for the paired transmitter, highlight the transmitter entry in the Data Setup menu and

press the “Select” button. This opens a menu of available options for the selected transmitter, such as filtering,

acquisition rate, modes and sample test waves. These settings can be selected and adjusted via the Logger arrow and

selection buttons. For full BioNomadix Transmitter filter specs, see the BIOPAC BioNomadix Product Sheet or

BioNomadix User Guide.

The configurable settings are as follows. (BN-RSPEC is used as an example, other transmitter settings will vary)

Data Setup

Function Available

Options Description Available Settings

Check Data Show preview screen of selected test wave or

data being acquired. ---

Reset Filters Resets the acquisition rate and filter settings

back to the factory defaults ---

BN-RSPEC

Transmitter

CH1 = RSP signal

CH2 = ECG signal Acq Rate Shows acquisition sample rate 400 Hz*, 1000 Hz, 2000 Hz**

**If a BN-ACCL3 is paired, the 2000

Hz setting is not available.

*Lowest available sample rate may be

500 Hz, dependent upon sample rate

settings of other paired transmitters.

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