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Brain-computer interfaces (BCIs) [1], [2] have recently been shown to be the most promising conduits for individuals with disabilities or reduced mobility to allow communication with the external environment or to trigger surrounding devices. BCIs have also been shown to be successful in a wide range of applications, such as personal authentication or identification [3], [4], assessment of emotional...
This work proposes a bi-direction hydrogen amorphous silicon (a-Si:H) gate driver circuit, which can be properly applied to the active-matrix liquid-crystal displays with integrated touch panels. The fluctuations of display control signals increase the noise of the touch panel during touch sensing period. To solve this problem, the proposed circuit allows the LCDs to pause at any column until the...
This paper presents a current sensor for the 16 series Li-ion battery cells. In order to detect the large current of 3.0 A at 57.6 V charging voltage and avoid the gate oxide overdrive problem, the feedback control loop with two source followers and the single stage differential amplifier are used. The proposed design is implemented using a typical 0.25 μm 1P3M 60V BCD process. The sensing current...
The design of the crane anti-collision alarming system based on electric field measurement is introduced in this paper. The crane anti-collision alarming system consists of many electric field acquisition devices and an alarm device. The electric field acquisition devices are responsible for collecting the electric field value of each point. The alarming device can receive all the signals sent by...
For the wireless sensor network (WSN) to operate successfully, a critical issue is to provide sufficient sensing coverage. In this paper, we target on smart environments and deal with both the homogeneous (having identical sensing radius) and heterogeneous sensors (having different sensing ranges) equipped with locomotion facilities to assist in the sensor self-deployment. An enhanced virtual forces...
Wireless sensor networks observe the occurrences of concerned events by the collaboration between sensor nodes via wireless communication. Sensors are usually prone to errors due to the unstable conditions they are exposed to. The goal is to solve event boundary detection with faulty sensors (EBDF) problem which is to successfully identify the sensor nodes close to the event boundary when faulty sensors...
Sensor node in wireless sensor networks, due to the unstable conditions they are exposed to, are usually prone to errors which cause the sensor readings to be faulty and usually pose problems on the reliability and security of the whole sensing systems. In this paper, we propose a distributed faulty sensor detection algorithm using entropy. Besides fault detection, our method also corrects the faulty...
A reinforcement learning (RL) method for quality of service (QoS)-aware power management (PM) of an energy harvesting wireless sensor network, named QoS-aware RLPM, is proposed in this paper. The RL environment for each sensor node is represented by the observable measurements of harvesting energy and residual energy stored in the battery. To achieve QoS-awareness, the proposed QoS-aware RLPM attempts...
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