Chi-Huang Hung

Home appliance energy monitoring and controlling based on Power Line Communication

In this paper an embedded remote monitoring and controlling power socket (RMCPS) has been developed with high suitability for automatic and power management of home electric appliances. It requires no new layout and has the advantage of low cost, low electricity consumption, small volume and convenient installation to replace the PC with a Web server construction. The RMCPS consists of three modules: the Essential Module, the Power Line Communication (PLC) Module and the Detection Module. This allows the user a remote Internet connection to an embedded power socket to both monitor and control home electric appliances.

Design of blood pressure measurement with a Health management system for the aged

In this paper we propose a design using a guiding system, Radio Frequency Identification (RFID), IEEE 802.15.1 short-range wireless transmission technology and the Internet to fabricate a blood pressure measurement (BPM) which works in cooperation with a health management system. Our design has many advantages, including being easy to use by the aged, low cost and wireless connectivity. It allows the early detection of high blood pressure and provides a doctor with a means for observing a patients health over a long period. The guiding system provides video guide features for the measuring steps, reminds the patient of the measurement results and makes suggestions. We propose here a new design to determine the BPM posture in order to increase the BPM reliability.

Halftone control method in white light leds by using an embedded remote controller with ZigBee communication

In this paper we design an automatic light controller which consists of two parts: an LED array with a control unit and an embedded remote controller with ZigBee communication. The LED array includes both an LED array and a transmission controlled module. We use the halftone method to transform different LED array patterns into gray patterns and use those different halftone patterns to control the LED on/off which can adjust the LED light brightness, just like using PWM. We use ZigBee technology to send a brightness control signal as a distance measurement by means of an embedded remote controller. Visual Studio is used as the development software for our design of the graphic interface to provide a user-friendly operation.

Design and implementation of a single button operation for a door lock control system based on a near field communication of a smartphone

This design integrates the near field communication (NFC) reader of a smartphone device with the door lock control system to provide a convenient single button operation. This design also offers three operation modes to the user in order to allow a one-time password with a time stamp permission to match the users password to thus enhance the doors security. The door lock control system is fixed on the door, and also provides both the sleep state and the standby state to save power consumption for a long time operation.

Design and implementation of a door lock control based on a near field communication of a smartphone

In this paper we propose an integration design of both a near field communication (NFC) and a smartphone to achieve a door lock control system. This design consists of a built-in NFC capabilities of a smartphone combined with a dedicated application deemed to be a key to open the door by means of the logical link control protocol (LLCP) exchange together with a time stamp to match the users own set of password information to verify who is a permissions user or not. When verified the specific door which is secured by this door lock control system immediately opens.

Home LED light control system with automatic brightness tuning for the difference in luminous decay

In this paper we present a design at the software and hardware modules of an embedded board with a sensor and an interface circuit both to control home LED lighting appliances and to avoid their difference in brightness caused by luminous decay. Our design is divided into three parts: an automatically adjusted LED driver, environment illumination detection and a wireless remote control unit.

Home outlet and LED array lamp controlled by a smartphone with a hand gesture recognition

In this paper, we design a home outlet and a LED array lamp controlled by hand gesture recognition with a smartphone that has a system composed of two parts: a smartphones application and a wireless remote control unit (WRCU). The application can read the accelerometer and gyroscope in a smartphone by means of hand gesture recognition and send a control command to the wireless remote control unit. The wireless remote control unit can decode the received message and echo the corresponding action. This design incorporates a LED array lamp as the home outlet used to control both the on/off function and the dimming function.

Home appliance control by a hand gesture recognition belt in LED array lamp case

In this paper, we design a wearable appliance gesture remote controller that is composed of two parts: a hand gesture recognition belt and a receiver unit. The controller uses both an accelerometer and a gyroscope to discern hand gestures and a Kalman filter to reduce some jitter noise such as an individuals hands that are trembling slightly. The receiver unit can decode the received information and echo the corresponding action. This design incorporates an LED array lamp as the home appliance used to control the on/off function and the dimming function.

Uniform utilization of each LED in an LED array

When we use halftone as the method to adjust the brightness of an LED array, there may be a difference in utilization among the LEDs which may cause a high utilization of a particular one, easily damaging and reducing the life of the array. In this paper we therefore propose a shift method by using different halftone patterns with complement in the LED array to achieve uniform utilization of each LED.

Design and implementation of a virtual electronic dart with a tablet system

In this design, we propose a virtual electronic dart which contains a microcontroller, a tri-axis accelerometer and a Bluetooth module. The players only need to wear a ring and a bracelet to swing this virtual electronic dart in the air. The controller will transmit the space coordinates of the virtual electronic dart to the specific tablet that calculates the hit location of the dartboard by using the flying path of the projection equation. The results are then displayed in the tablets screen.