A physiological signal monitoring system would be
extremely useful in many areas, provided it was portable,
wearable, and capable of monitoring target physiological
signals remotely via wireless transmission protocol. First,
a wireless BCI system can dramatically reduce installation
complexity, wire weight, and trouble-shooting effort
associated with traditional wired BCI systems. Second, a
wireless BCI system would provide users with more freedom
of posture and movement so that they can perform
their routine tasks in real-world environments. Third,
when built with low-power, miniature signal acquisition
and conditioning circuits, the front-end of a BCI system
can be integrated into a truly wearable device such as a
baseball cap, a headband, or a pair of sunglasses to maximize
portability and wearability. If wearable and wireless
EEG monitoring proves feasible, a much wider range
of applications for BCI will emerge. In addition, the lowpower
integrated circuit design can also fulfill the re-
Signal
acquisition
Wireless
transmitter
Wireless
transmission
Signal processing and
feature extraction
Wireless
receiver
Signal
processing
Applicationspecific
feedback
Front-end interface
Color version available online
Fig. 2. Block diagram of a wireless BCI system.
Lin /Ko /Chang /Duann /Chen /Su /Jung
Gerontology 116 2010;56:112–119
quirements for long-term field operations. Figure 2 illustrates
a general wireless BCI system in which the wires/
cables connecting the front-end signal-sensing circuit
and the back-end data analysis unit are completely replaced
by wireless transmission protocols such as Bluetooth
or wireless local area network (WLAN). The following
section reviews the systems listed in table 1 that
feature wearable and wireless physiological signal monitoring.
A physiological signal monitoring system would beextremely useful in many areas, provided it was portable,wearable, and capable of monitoring target physiologicalsignals remotely via wireless transmission protocol. First,a wireless BCI system can dramatically reduce installationcomplexity, wire weight, and trouble-shooting effortassociated with traditional wired BCI systems. Second, awireless BCI system would provide users with more freedomof posture and movement so that they can performtheir routine tasks in real-world environments. Third,when built with low-power, miniature signal acquisitionand conditioning circuits, the front-end of a BCI systemcan be integrated into a truly wearable device such as abaseball cap, a headband, or a pair of sunglasses to maximizeportability and wearability. If wearable and wirelessEEG monitoring proves feasible, a much wider rangeof applications for BCI will emerge. In addition, the lowpowerintegrated circuit design can also fulfill the re-SignalacquisitionWirelesstransmitterWirelesstransmissionSignal processing andfeature extractionWirelessreceiverSignalprocessingApplicationspecificfeedbackFront-end interfaceColor version available onlineFig. 2. Block diagram of a wireless BCI system.Lin /Ko /Chang /Duann /Chen /Su /JungGerontology 116 2010;56:112–119quirements for long-term field operations. Figure 2 illustratesa general wireless BCI system in which the wires/สายเชื่อมต่อวงจรตรวจวัดสัญญาณเวอร์และหน่วยวิเคราะห์ข้อมูลสิ้นสุดหลังทั้งหมดจะถูกแทนโดยโพรโทคอลการส่งข้อมูลไร้สายเช่น Bluetoothหรือท้องถิ่นที่ตั้งเครือข่ายไร้สาย (WLAN) ต่อไปนี้ส่วนระบบที่แสดงในตารางที่ 1 ความคิดเห็นที่ลักษณะการทำงานควิลท์และตรวจสอบสัญญาณไร้สายสรีรวิทยา
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