Advanced Materials Research Vols. 718-720

Abstract: The intelligent trends in the household environment result in the growing expectations for interactive experience. However, most traditional products do not meet the emotional demand of customers because of their rigid operation mode and aesthetic form. This paper is going to present a system combines potential control awareness of the user and anthropomorphic responsive behaviors of the objects to help creating brand new smart products. A smart lighting model is explored to explain specific details by two application scenarios: anthropomorphic affordances of perceiving control behavior and the idle state. The work aims at creating a new form of product that enrich the emotion value of daily commodities in household environments and enhance emotional communication with human.

Abstract: In order to know how inconsistency of power battery pack evolves during work, capacity range of cells was studies. The characteristic of operating circuit of power battery pack both in parallel connecting and in serial connecting was analyzed. Then, ratio models with parameters such as charging/discharging rate and depth of discharging of each cell in pack were studied. Remaining capacity of a cell was calculated according to the capacity degradation model. Evolution model of capacity range of cells in pack was established. Based on that of parallel or serial connecting, evolution models of capacity and capacity range in hybrid connecting were established too. Models established here would be helpful to determine cycle life of power battery pack.

Abstract: A multi-DSP real time image processing system is designed, with TI's TMS320C6455 as core processor as well as Xilinx Virtex5 FPGA for pre-processing and important data channel. The system has completed testing verification and results show that the design is feasible and reliable.

Abstract: The common method of implementing a HDLC controller is either using an ASIC device or designing it with software. It is easy to implement a HDLC controller with an ASIC device, but it is hard to modify it. The software method introduces a flexible way, but it will occupy a huge amount of CPU resource, and the timing parameters are hard to ensure. Designing HDLC controller with FPGA can take advantage of both speed and flexibility, furthermore, with the programmable ability of FPGA, more than one channel can be implemented in a single FPGA. This paper introduces a HDLC controller design base on Alteras Cyclone III FPGA and Quartus II developing environment. The controller contains four HDLC channels and an interface for PC104 bus. Except the basic HDLC protocol, more functions are added into the controller, such as alterable flag sequence, built-in timer and so on. The design has been fully tested, and has been used in a communication production successfully.

Abstract: The purpose of this report was to introduce the design of a portable, inexpensive and programmable digital light-emitting diode (LED) system to control overground walking speed. The system includes a custom-made 10 meters digital LED strip and a digital microcontroller. By controlling the duration time of the power supply to each LED unit, a visible running lights signal can provide a visual cue for speed control. To evaluate this design, five subjects were asked to walk overground while following the LED visual cue at five different target speeds. The actual walking speeds were determined using Vicon motion capture system. The results of this evaluation showed a good match between the actual and desired speeds. The average percent difference was 2.51%, measured over 250 walking trials by the subjects. 98% of trials had an percent difference smaller than 6.5%, which is the maximum tolerated error within the literature. The inter-trial reliability for the LED speed control system ranged from 0.85 to 0.88 for faster speeds (1.6 m/s, 1.4 m/s), and slightly lower ranging from 0.74 to 0.79 at slower speeds (1.2 m/s, 1.0 m/s, 0.8 m/s).

Abstract: With the rapid development of UHV power system in China, corona effect has also been paid more and more attention, systematic study of corona phenomenon and its influence factor would give important reference value to the design of UHV transmission line. In this paper, 2D and 3D simulation model of the corona cage have been established through the ANSYS simulation software. The 2D model only can be calculated and analyzed for a specific cross section, and the 3D model can reflect the field distribution over the whole wires, is superiority than 2D model, and this 3D modeling method can provide reference to wire which surface attached with dirt, rain, snow, and other asymmetric model.

Abstract: A large-scale strain sensor for measuring the strain between 0~0.2ε has been developed using grating moiré fringe in this work. The gallium arsenide near-infrared solid-state light-emitting diode was used for light source of the sensor, and photodiode array sensor was chosen for the photodetector. The signal received was converted into digital pulses for the output by the signal processing system and displayed. The results indicated that the fabricated large-scale strain sensor showed the good linearity and repeatability, and low hysteresis. Strain sensitivity of 620ε^-1 and a minimum strain of 0.004 ε can be achieved.

Abstract: In order to improve multi-axis machine accuracy, error compensation techniques have been widely applied. However, the lack of reliable methods for direct, global and comprehensive estimation implies that all compensation techniques are based on off-line sequential error components measurement. These measurements provide static results, and cannot reflect the actual machine conditions. Thus, these results are not representative of the real working conditions because of disturbances from thermal distortions and dynamic perturbations. This paper presents an on-line error identification and compensation approach for CNC multi-axis machine tools. Based on the simultaneous measurement of error components, the proposed identification scheme is built to ensure volumetric error prediction for an adaptive error compensation system. Implemented on a moving bridge type CMM, the approach led to a significant improvement of the three-dimensional measurement accuracy.Compared to the conventional off-line error compensation techniques, the proposed identification and compensation approach can further improve the compensation adaptability and efficiency.

Abstract: This paper analyzes the principle of operation, the feature of systems, the contrast of advantages and disadvantages of the two different systems which are Full-flow dilution sampling system (FFDSS) and Partial-flow dilution sampling system (PFDSS).This paper researches the correlation of this two different systems and the ways of improving the correlation. Many researches show that the correlation of the PM's test is below 10%.The PFDSS can replace the FFDSS in the special case. Some detailed suggestions of improving the systems to meet the future requirements are presented in the last of this paper.

Abstract: There are mainly three measures for waste disposal: combustion, landfill and composting. Among them, combustion is believed to be the most efficient way. It is the most convenient way to reduce the amount of waste at utmost. Meanwhile, it is not only harmless, but contributes useful heat source. Therefore, most of developed countries employed combustion in waste disposal. Today, China is contributing 30 percent of the waste in the world; however, landfilling is still the most common way for waste disposal. To change this situation, the government of China has taken steps to generalize the use of combustion in waste disposal. Besides the policies by the government, another exciting thing is that the Beijing Honyuanmao CO. Ltd. Of environmental protection machinery successfully invented an advanced miniaturized continuous efficient refuse disposal system. after three years investigation. This invention finds a new way to develop environment friendly society, green economics and cyclic economics.