Location based services are the hottest applications on mobile device nowadays. Indoor wireless position is key technology to enable location service work well indoors, where Global Position System normally couldn't work. The main tendency of indoor Bluetooth and RSSI (radio signal strength indicator). parameter for position. But values affected by environment factors easily. Because this reason, results got from usually imprecise unacceptable. In paper, an adaptive algorithm Distance-Loss...

Evaluating robot performance through health data is important for industrial robots in production. In this article, a closed-loop evaluation method based on low-cost proposed to realize the of and contribute optimization. Specifically, we first define structure between system its performance. Based this, multicluster cross-fusion algorithm K-means clustering extract patterns direction magnitude control errors instead metrics describe Then, objective interpretable criterion sets are designed...

With the advance of information and communication technology, smart grid, metering, residential electricity usage data are available for analyzing household pattern. However, most such pattern analyses have been based on meter data. Geographical location environment factors not well considered. In order to a better understanding pattern, this paper studies both A Hidden Markov Model (HMM) is applied learn consumption dynamic behavior under corresponding environments clustering method...

With the development of renewable energy such as hydrogen energy, supplies have been an important part DC microgrid. Related control and power management has become focus current research. The Photovoltaic /fuel cell/hybrid storage microgrid in this paper consists (PV), fuel cells, lithium-ion batteries, supercapacitors, along with associated DC/DC DC/AC converters. To guarantee stability PV/fuel microgrid, paper, a comprehensive system is proposed. proposed stably regulate bus voltage well...

Accurate state-of-charge (SOC) estimation is essential to battery management system. The widely adopted methods based on Kalman Filter (KF) fail take the variable environmental conditions into consideration, which may result in a poor accuracy. This paper proposes novel model KF method estimate SOC of Lithium-ion battery. In proposed model, noise variances are optimized for system current state at each iteration, forgetting factor introduced improve algorithm's convergence and accuracy...

Systematic monitoring and evaluation of robot performance can ensure productivity reduce operating costs. With the development smart factories, massive amounts historical operation data provide basis for a comprehensive performance. However, current research focuses on from variety angles index construction has different forms, lacking systematic widely acceptable framework. To address this problem, paper presents Open System Architecture Computer-Integrated Manufacturing (CIMS-OSA)...

With the increasing popularity of network technology in China, new mode shopping, trading, payment through Internet is developing rapidly. E-commerce with its low cost, high efficiency advantages, not only enjoyed by ordinary consumers, but also effectively promotes small and medium enterprises to find business opportunities win market. It has become China's transformation development optimizes industrial structure important power. However, electronic trading market China many different...

This paper presents the novel utilization of a chip, STI01, developed in China and traditionally used for muscle stimulation, to meet demands transcranial electrical stimulation (tES). We present principles behind design external circuit's filter, along with simulation results. Notably, we successfully accomplished tES utilizing STI01 chip. could be enhanced further by enriching MCU (STM32F030) program introducing closed-loop Brain-Computer Interface (BCI). Given compact nature circuit...