Public deliverables

WP1 Coordination and management

The aim of this deliverable is to describe the early project management activities which enabled successful project kickoff in May of 2020. Furthermore, it documents the initial project communication activities mostly related to informing the public about the project starting and roles different organisations will have in it. 

Due to the travel limitations induced by COVID-19 pandemic the kick-off meeting was held in a virtual environment through a teleconference. Its organization and approval by the EC were predated by extensive work on risk assessment by each consortium member and as a group, as well as creation of a robust risk mitigation plan for the initial stages of the project. Once the project started the news was spread on the consortium member’s websites, social networks and in the local media. 

Despite the challenges imposed by the pandemic the project has successfully started in May 2020 as originally intended. The consortium overcame the initial obstacles through collaboration and dedication to the common vision. The kick-off meeting was held and communicated to the public. 

On this link you can find all the press releases, articles and media content related to consortium members and the project up to now.

WP2 Co-development, safety, and experimental deployment

WP3 Non-invasive biosensors

WP4 Minimally invasive biosensors

WP5 Sensor data fusion

Due date: 31.01.2021.
Actual submission date: 28.01.2021.
Partner responsible: TECSR
Reviewed by: TEC

To the initial version of MEA basis for sensing based on the state-of-the-art sensors and physiological strain modelsIt contains information about the alpha prototype design, dimensions, manufacturing process and proposed positioning. 

The alpha prototype of the MEA basis for sensing is based on the requirements defined in D2.1, focusing on the available technology and existing models for physiological strain.  

The alpha version comprises a two lead ECG sensor and an NTC thermistor for measurement of the skin temperature. From the proposed design, advanced functional prototypes of MEAs will be iteratively developed to allow testing and validation in both laboratory and field conditions. Current design will serve as a test bed for further research and development, that will lead to a high level of integration of novel sensors to the existing architecture later in the project. 

MEA basis prototype with NTC thermistor subsequently added (down).

First step towards fully integrated, single-substrate biosensing system was made by designing and manufacturing MEA basis with two ECG sensors and one NTC thermistor. The presented MEA basis is designed and developed using state of the art technologies and knowledge to be used for Alpha demonstration purposes.  

Technical drawing (left) and positioning of the MEA basis illustrated on 3D human body model (right).

Technical drawing (left) and positioning of the MEA basis illustrated on 3D human body model (right).
 
MEA-positioning
 MEA basis positioning on five different body sites.

WP6 Data analytics and DSS

Due date: 29.01.2021.
Actual submission date: 
Partner responsible: JR
Reviewed by: TEC

The aim of this deliverable is to provide a basic data management infrastructure useable by all project partners with low integration effort suited for the alpha demonstrator.

Overview of the basic data communication flow.

A Central Data Warehouse (CDW) has been implemented which is accessible for all project partners with well-defined and simple to integrate access clients as well as interfaces. Those client software components, as well as the interfaces have been thoroughly unit tested before internal distribution. The basic data management supports all needed functionalities as required by the alpha demonstrator. Lessons learnt in the first test stage will be integrated into the data management as further optimizations. 

The multidisciplinary nature of the project partners within SIXTHSENSE, their differences in experiences in data handling and processing showed the need for a common basic data infrastructure. In the course of the specification of the Central Data Warehouse (CDW) it became apparent that by simplifying access to data and by providing sample sets, development on tasks depending on this data can be parallelized. Also, in order to not only rely exclusively on field trials for data generation, a simulator for biosignals has proven to be beneficial.  Further improvements of the data management infrastructure will extend the back channels from the decision support system and the command centre via the CDW to the first responders in the field.   

 

WP7 Human machine interfaces

Due date: 31.01.2021.
Actual submission date: 28.01.2021.
Partner responsible: GES
Reviewed by: TECSR

The aim of this deliverable is to design and prototype an electrical stimulation unit that complies with the requirements defined in previous deliverables (D2.1, D7.1 and D9.1).

Based on the existing technology and GES knowhow a multichannel electrical stimulation prototype was developed. The design was made in compliance with the modular architecture proposed in D9.1 that allows for it to be used in a standalone device, or as an integral module of the SIXTHSENSE wearable hub alpha prototype. 

Block diagram of the Alpha electrotactile stimulator.

The manufactured prototype fulfils all required characteristics, as can be seen from results of the functional test, as well as hardware photographs presented below.

Realized stimulator prototype: top side (left), bottom side (right).

Main set-up for measurement tests. Stimulator output is connected to a Human Model Equivalent Circuit where current controlled pulses are converted into the signals that are easily measured with the oscilloscope.

An example of the test results for the Alpha stimulation system can be seen in the picture below. For this test, the oscilloscope was connected to HME circuit as shown in picture above, and its input was set to DC. The stimulator prototype was set to generate biphasic charge compensated pulses with pulse width set to 250µs, pulse rate to 50 pps, and amplitude to 1 mA.

Resulting voltage obtained during 1 mA pulse current test. Time base is set to 80 µs/div and vertical sensitivity to 500 mV/div (0.5 mA/div).

Due date: 31.01.2021.
Actual submission date: 28.01.2021.
Partner responsible: TECSR
Reviewed by: AAU

The aim of this deliverable iso serve as a supplementary document to the first version of SIXTHSENSE electrode prototype, providing technical data on: 

    • Shape, size, configuration, number of pads and pad distribution;  
    • Technical drawings; 
    • Manufacturing process; 
    • Proposed positioning.

In order to provide reliable electrotactile feedback through discrete and continuous messages, a design containing two larger (top and bottom) and six smaller pads in 3×2 matrix configuration is proposed.  

Technical drawing of the electrode design (left) and positioning of the electrode and the stimulator unit illustrated from two different viewing angles of 3D body model (right). The stimulator (white box) can be worn around the waist.

The electrode prototype is manufactured using well-known, stateoftheart materials and technologies, while being conscious of the fact that it needs to be incorporated in a wearable garment such as a vest. Silver/silver-oxide conductive inks are screen printed on PET based substrates, and hydrogel for electrical stimulation is used as skin/electrode interface.  

Screen-printed electrode design.

Subsequent electrode prototype designs will be optimized based on the further results of psychometric experiments and technical validation 

The presented electrode prototype is designed and developed using stateoftheart technologies and knowledge and will be used for Alpha demonstration purposes. Based on pilot trials the preferred option for the electrode position is the lateral side of the torso on both right and left body side. 

Electrode positioning on the lateral torso.

WP8 Mission critical telecommunications

WP9 System integration & validation