General

The completion of a preliminary study has many advantages and can allow you to minimise potential risks to your main study. As well as a way to check the design of the study (i.e. sensor incorrectly initialised, poor user compliance due to too many questions in surveys, too difficult or not enough options to select, etc), it allows you to optimise the main study. In general a preliminary study allows you to become familiar with the use of the sensor this will allow you to optimise quality of the data obtained.

All Sensors

The ECG – and activity sensor EcgMove 3, like the EDA – and activity sensor edaMove are placed into a cradle. The cradle is connected via USB to a PC with Sensor-manager software installed. This software allows the transfer of the sensor data to the PC. With the activity sensor Move 3 no cradle is required; the USB cable can connect directly.
The measurement data from the sensor and all secondary parameters is recorded in the Unisens Data format. Unisens is a free and open source data format designed to capture the data from multiple sensors. For more information about unisens please visit http://www.unisens.org. A unisens data set consists of a meta file (unisens.xml) and different data files for each measurement signal and every secondary parameter. The secondary parameters are saved within the unisens data.
Yes. You can process the raw data with other software applications such as EDFBrowser, Matlab, or Kubios HRV.
All of our sensors can be connected via USB cable. Our newest generation of sensors including the Move 3 and EcgMove 3 come with Bluetooth smart integrated in the design to allow for further integration with our experience sampling platform movisensXS.
This error can occur when the driver for the sensor was not installed properly during the SensorManager installation. Please uninstall and then re-install the SensorManager and take care that the driver installation is not interrupted.
It is possible to test the sensor for a period of up to three weeks. Since we have a limited quantity of the sensors available for this purpose, please suggest a time period and what sensor you would like to test.
Yes. You can hire our sensors for a weekly fee. Please contact us for a quote on this service.
A measurement is usually performed in six steps:
1) Preparation of the sensor. Ensure that the battery is fully charged.
2) Configure the sensor using the SensorManager software and start the measurement.
3) Complete the measurement.
4) Extract the measurement from the sensor and save the raw data. It’s always good to make a backup of the raw data as your next step.
5) Open the data with the UnisensViewer and make any necessary edits.
6) Analyse the data with DataAnalyzer.

Activity Sensor Move 3

The best results will be obtained with the sensor placed on the right hip. It’s also possible to wear the Move 3 sensor on the chest with a chest strap. Be sure to select the correct position when setting up the sensor. The position that the sensor is worn is important information that needs to be entered in to the DataAnalyzer to ensure proper calculations.

ECG and Activity Sensor EcgMove 3

This problem can occur when the sensor isn’t correctly positioned in the usb cradle, the battery is completely discharged, or an internal failure of the sensor software has occurred. Remove the sensor from the cradle and place it back in. The cradle should then recognise the sensor again. It’s also possible that the sensor battery is completely flat. Charge the battery in the sensor cradle for five minutes, and then try connecting it to the PC again. If it still fails to be recognised, initiate a reset of the sensor.
The sensor can be attached to the body in two different ways: with a chest strap or with adhesive electrodes. The data quality remains the same for both options. In contrast to the chest belt, adhesive electrodes can be disposed of after use. The chest strap comes in four different sizes (S, M, L, XL). The one-way electrodes are suited for short term measurements (1-2 days). For any measurement lasting more than 2 days, chest straps are highly recommended.
Make sure to set a long enough duration. Also, ensure that the electrodes have been positioned on the body correctly and that the ecg-sensor is attached.
The belts are designed for long term usage and, with proper care and frequent cleaning should last for many years. Please be sure to refer to the cleaning instructions that came with the sensor.
It’s possible to set a marker on the ECGMove 3, by simply giving the front of the sensor a gentle double tap. The sensor will confirm the placement of a marker by vibrating briefly.
The sampling rate of the ecg signal is standard at 1024 Hz.

EDA and Activity Sensor edaMove

The best locations to measure the electro-dermal activity are the inner surfaces of the hand and foot. If a measurement on the hands produces too many recording artefacts, then the feet are a viable alternative.

Analysis Software DataAnalyzer

Yes. Simply download the DataAnalyzer Software from our website. It comes with a 30 day free trial period, which can also be extended an additional 15 days upon request. Otherwise, to continue using the software you’ll need to purchase a licence.
The DataAnalyzer software is for a single-user license. When the program sends the request for a key, it is specific for the workstation that it is sent from. This means that a specific license key for each workstation on which the software will be used will be required. Once the software has been unlocked using a license key, it is registered exclusively for this workstation. If you need to use the DataAnalyzer on another computer, you will need to purchase an additional licence.
The software can be installed on computers running Microsoft Windows 7 and above.
If you need to use the DataAnalyzer software beyond the initial 30 day free trial, you need to register the product. A licence key must be purchased through movisens from the computer which you intend to use the software on. Once the licence is received from us, the software will be able to be used again.
The display of secondary parameters depends on what additional licence modules have been installed, and what sensor was utilised to gather the data. There are currently three additional modules available: EnergyExpenditure, Cardio, and EDA. The DataAnalyzer will recognise all of the measurement data and offer relevant secondary parameters. For example for a Cardio parameter the ECG signal is necessary. If the required signal isn’t available, the DataAnalyzer will not show the secondary parameter.
Currently the language of the software (English or German) is dependent on the language of the operating system.
You can find the version number at the top of the window after opening the software. To update the software, please use the updater which can be found via: Start Menu -> movisens DataAnalyzer -> Updater. The updates are free of charge.
The calculation of the AEE is based on acceleration data. From this data, everyday activities are recognised, and for each recognisable activity there is a model for the AEE calculation. This means that AEE cannot be calculated perfectly for non-everyday activities, especially activities with a static effort (ie without acceleration). In certain cases, the heart rate may be a better measure of stress. For example, before the actual investigation you could make measurements for everyday activities and then create an individual HR -> AEE model. Then during the actual examination, you can then use that data to convert HR values to AEE.
If the ECG Signal quality does not allow calculation, there are gaps in the representation of the HRV parameters. This inadequate signal quality can have different reasons:
• The belt is too tight or too loose.
• The belt has been placed in position too close to the start of the measurement. It takes about 10 minutes until the dry electrodes on the belt reach the optimum conductivity.
• Motion artefacts. Excessive movement or muscle strain at the electrode positions can lead to motion artefacts.
• Cardiac arrhythmia
• After every measurement we recommend checking the ECG data with the UnisensViewer. In doing so, one quickly develops a feeling on how to optimize the sensor for the generation of high-quality data.

SensorManager

This problem occurs when invalid entries are entered for the measurement duration. Prior to each measurement, adjustments are made to the duration of the measurement, in relation to the minutes, hours and days. The field for minutes allows values from 0 to 59. The field for hours allows values from 0 to 23. Examples: 24 hours -> 1 day; 60 minutes -> 1 hour; 119 minutes -> 1 hour, 59 minutes.
The data is saved in the unisens format by default. This format allows the data to be opened in the Unisens-Viewer. If the data is to be used in Excel, then during the save function, please select the “as .csv” option. We only recommend this option for short measurements.

movisensXS

This is the PIN for the study, which as default is set to 2486. The PIN can be configured in the “Study Running” Block.
We do not recommend the use of an account (i.e. e-mail address and password) by multiple users. However, each user can create an account using an e-mail address and invite other users. The inviting user (admin) can assign different read and write privileges for the new user. Each user can create and manage studies. The administrator does not have general view privileges, but he can still open the administration (https://xs.movisens.com/administration/users). Users can not access mutual studies, unless the administrator has granted appropriate rights.
In the entire XS environment, each user can only use one account (= e-mail address and password). It is thus not possible to be associated with different organizations with the same e-mail address. An e-mail address can be assigned to an organization. Please contact movisens if you want to change the organization.
The items are credited by movisens to an account (normally the account of the customer). Users who are members of the organization have the ability to use these credits. The administrator can control the consumption of the credits (https://xs.movisens.com/administration/billing). Occasionally fewer credits are used for a study than are available in the account. In this case, the credits are retained and can be used for another study. Contact us if you run out of credits during an ongoing study.
„1 form failed to send“
Although the completed questionnaires were loaded onto the server, the smartphone displays the error message. The problem can be resolved by resetting the app under Settings. The coupling to the subject is also cancelled.

„SSL Encryption error“
This error occurs if the Wifi network you are using is disrupted or does not provide direct Internet access (e.g., VPN). To test the Wifi network, try to access the https://xs.movisens.com website through your smartphone browser. When a login page of the Wifi opens, you must log on to this WiFi first. If this is not the case, a new installation of the movisensXS app helps. To do this, go to "Settings -> Apps -> movisensXS -> Delete app data" in the smartphone and then delete the app to reinstall it.

Coupling the Sensors with movisensXS

The instructions for this operation are available in the user manual for the SensorTrigger.
The smartphone requires Android 4.4 or higher, and a Bluetooth 4 Chip.

Payment Methods

We prefer the classic bank transfer for our payments. Our bank details are:
Sparkasse Karlsruhe - IBAN: DE60 6605 0101 0108 107335 - BIC: KARSDE66XXX
You have two options to pay via Paypal. The first option is direct payment to einkauf@movisens.com. The second way is by means of a withdrawal request to your (PayPal) e-mail address. The customer pays the additional 4% transaction fee.