Page 161 - ITU Kaleidoscope 2016

ICTs for a Sustainable World

data and coaching video, instructs an operator. Both a voice communication path and a data
And also, a physiotherapist revises therapy communication path have to be established between a
programs based on measured data. patient-PC and an operator-PC for an operator to monitor
movements of a patient and coach her or him verbally. A
 Communication exchange program: This sequence flow establishing these two paths is shown in
application connects a patient with an operator. Figure 5.
And, a supervisor can monitor an operator
coaching a patient with this program.
 Therapy contents: Presentation contents to explain
how to train, or training content such as video
games for rehabilitation.
 Patient database: Patient data that include profile
data, measured data, therapy programs, and
coaching video are stored and managed by this
database. The access permission policy for this
database has to be decided by the management
organization of this system.

The supervising tools and communication exchange
program are newly added to introduce operators to the tele-
rehabilitation system. The administration and measuring
tools are used by an operator, and the supervising tools are
provided to a physiotherapist as a supervisor.

Figure 5. Sequence flow to establish paths between a
Figure 4. System concept of the remote rehabilitation patient and an operator

4. IMPLEMENTATION Since it is better for a patient to select an operator than
vice versa, operators log in to the call center server prior to
We have already developed TRS proposed in Section 3 a patient choosing an operator. A patient then clicks a
but not its administration tools. In this section, we explain button to choose one of the logged in operators. After an
how to implement the above components other than the operator logs in to the video call center server, the data path
administration tools. is established between the operator-PC and the video call
center server. This data path between a patient-PC and the
4.1. Design policy video call center server is established the same way.
As explained in the next subsection, we use Microsoft
KINECT to measure strain of the upper body of a patient.
Patients are spread over a wide area, and some live in
rural areas. The operators are also spread over wide area. Since Microsoft KINECT is difficult to control by using a
Web-browser, we developed a KINECT control application
Therefore, it is difficult to maintain patients’ PCs and as a native application, not a Web application. Data
operators’ PCs by visiting them. Thus, we adopt the Web measured by Microsoft KINECT are sent to the video call
application as possible to realize the above tools. And also, center by using the Web socket and converted into Web
the Web application can store personal information safely. contents.
Moreover, we adopt as many open source programs as We use WebRTC [12] and SkyWay server [13], which is
possible to suppress system cost. a WebRTC platform, to establish a voice path between a
patient-PC and an operator-PC. Each PC for a patient and
4.2. Communication exchange program an operator accesses the SkyWay server to obtain a peer ID

and sends it to the video call center server before

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