Online proceedings - EDA Publishing Association

ird (Fig. 6)
The computer communication society will advance
continuously due to the development of related technologies.
Those technologies, however, should not be applied to tools
only for people's pleasure and convenience. Instead, we
should apply such advanced technologies to our
environment, and should take urgent measures to prevent
environmental destruction in the 21st century. By fusion of
the Internet and cellular phone technology, the world of the
Nature Interfacer will be realized in the near future. Fig. 7
shows a conceptual figure.
Fig. 5. Nature Interfacer
11-13
May 2011, Aix-en-Provence, France
V. HUMAN RECORDER SYSTEM DEVELOPMENT
FOR SENSING THE AUTONOMIC NERVOUS SYSTEM
An airplane is equipped with a flight recorder, a ship with a
voyage recorder, and recently drive recorder is being
installed in cars. Sure, human also needs recording
equipment for his vital data then. I named this "Human
recorder". We defined “Human Recorder” as a wearable
device that constantly detects and records vital signs 24
hours, 365 days.
Fig. 8 shows an image of health monitoring system
enabled by the Human Recorder System. A micro energy
powered chipped sensor composed with an
electrocardiograph (ECG), an electroencephalograph (EEG),
a thermometer for skin temperature, and an tri-axis
accelerometer, sends data to a smartphone by wireless using
weak radio signal. The smartphone linked to the Internet
through seamless communication network will forward
periodically stored data to a computer (memory storage) unit
on which data display and analysis software is provided.
In the technological progress of recent microdevices, we
could achieve the development of the first stage of Human
Recorder (Fig. 9). The main microdevice is miniature and
lightweight electrocardiograph, 40×35mm in size, 7mm in
thickness, and 11g in weight, (smallest, lightest in the world),
combined with a tri-axis acceleration sensor, a thermometer
for skin temperature, battery and wireless data transmission
chip.
Animals
Artifact
Sensor
Watch-type computer
Information (position
physiology,chemicals)
Micro generator
Fig.8 Composition of Human Recorder system
To network
Fig. 6. Application of Nature Interfacer
Wireless transmitter
Fig.9 The first stage of Human Recorder:
smallest and lightest ECG device in the world
Fig. 7. Positioning of Nature Inter-facer in the third generation network
This new device enables, noninvasive, precise, real-time
detection and collection of ECG, which is the key for human
autonomic nervous system detailed analysis, by the
following process.
• Human Recorder is attached to the chest. (user does
not feel any discomfort with the device)
• User can spend time as usual.
• ECG can be measured continuously and recorded
into a smartphone for about 120 hours.
• The heart beat cycle is extracted from the
214