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Easily installable wireless behavioral monitoring system with electric field sensor for ordinary houses.

Tsukamoto S, Hoshino H, Tamura T - Open Med Inform J (2008)

Bottom Line: Since the sensor is not direction sensitive and does not require precise positioning and wiring, it can be easily installed in ordinary houses by the end users.For evaluating the practicability of the sensor unit, several simple tests have been performed.The results indicate that the proposed system could be useful for collecting the usage statistics of home appliances.

View Article: PubMed Central - PubMed

Affiliation: Division of Life Science and Engineering, School of Science and Engineering, Tokyo Denki University, Japan.

ABSTRACT
This paper describes an indoor behavioral monitoring system for improving the quality of life in ordinary houses. It employs a device that uses weak radio waves for transmitting the obtained data and it is designed such that it can be installed by a user without requiring any technical knowledge or extra constructions. This study focuses on determining the usage statistics of home electric appliances by using an electromagnetic field sensor as a detection device. The usage of the home appliances is determined by measuring the electromagnetic field that can be observed in an area near the appliance. It is assumed that these usage statistics could provide information regarding the indoor behavior of a subject. Since the sensor is not direction sensitive and does not require precise positioning and wiring, it can be easily installed in ordinary houses by the end users. For evaluating the practicability of the sensor unit, several simple tests have been performed. The results indicate that the proposed system could be useful for collecting the usage statistics of home appliances.

No MeSH data available.


Time-course of setting the threshold. At the beginning of the experiment, the target appliance is in the power-off state. By pressing the first button, the sensor output (noise) is recorded. The appliance is then powered on and the threshold value is adjusted by pressing the second button.
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Figure 9: Time-course of setting the threshold. At the beginning of the experiment, the target appliance is in the power-off state. By pressing the first button, the sensor output (noise) is recorded. The appliance is then powered on and the threshold value is adjusted by pressing the second button.

Mentions: Fig. (9) shows the results of the threshold setting experiment. At the beginning of the experiment, the television set was in the power-off state; in this state, the sensor output was approximately 30 mV, which was environmental noise. In this experiment, the sensor output was approximately 0.1 V even in the power-on state; however, by using the threshold mechanism, the threshold value was set to approximately 0.06 V; therefore, an accurate feedback could be obtained.


Easily installable wireless behavioral monitoring system with electric field sensor for ordinary houses.

Tsukamoto S, Hoshino H, Tamura T - Open Med Inform J (2008)

Time-course of setting the threshold. At the beginning of the experiment, the target appliance is in the power-off state. By pressing the first button, the sensor output (noise) is recorded. The appliance is then powered on and the threshold value is adjusted by pressing the second button.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2666956&req=5

Figure 9: Time-course of setting the threshold. At the beginning of the experiment, the target appliance is in the power-off state. By pressing the first button, the sensor output (noise) is recorded. The appliance is then powered on and the threshold value is adjusted by pressing the second button.
Mentions: Fig. (9) shows the results of the threshold setting experiment. At the beginning of the experiment, the television set was in the power-off state; in this state, the sensor output was approximately 30 mV, which was environmental noise. In this experiment, the sensor output was approximately 0.1 V even in the power-on state; however, by using the threshold mechanism, the threshold value was set to approximately 0.06 V; therefore, an accurate feedback could be obtained.

Bottom Line: Since the sensor is not direction sensitive and does not require precise positioning and wiring, it can be easily installed in ordinary houses by the end users.For evaluating the practicability of the sensor unit, several simple tests have been performed.The results indicate that the proposed system could be useful for collecting the usage statistics of home appliances.

View Article: PubMed Central - PubMed

Affiliation: Division of Life Science and Engineering, School of Science and Engineering, Tokyo Denki University, Japan.

ABSTRACT
This paper describes an indoor behavioral monitoring system for improving the quality of life in ordinary houses. It employs a device that uses weak radio waves for transmitting the obtained data and it is designed such that it can be installed by a user without requiring any technical knowledge or extra constructions. This study focuses on determining the usage statistics of home electric appliances by using an electromagnetic field sensor as a detection device. The usage of the home appliances is determined by measuring the electromagnetic field that can be observed in an area near the appliance. It is assumed that these usage statistics could provide information regarding the indoor behavior of a subject. Since the sensor is not direction sensitive and does not require precise positioning and wiring, it can be easily installed in ordinary houses by the end users. For evaluating the practicability of the sensor unit, several simple tests have been performed. The results indicate that the proposed system could be useful for collecting the usage statistics of home appliances.

No MeSH data available.