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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korea Institute of Information and Communication Engineering
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The Korean Institute of Information and Commucation Engineering
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Volume & Issues
Volume 20, Issue 8 - Aug 2016
Volume 20, Issue 7 - Jul 2016
Volume 20, Issue 6 - Jun 2016
Volume 20, Issue 5 - May 2016
Volume 20, Issue 4 - Apr 2016
Volume 20, Issue 3 - Mar 2016
Volume 20, Issue 2 - Feb 2016
Volume 20, Issue 1 - Jan 2016
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A Design and Manufacture of Modified Rhombus Slot UWB antenna with Fork-shaped-Feedline
Ha, Sung-Jea ; Yoon, Joong-Han ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1221~1228
DOI : 10.6109/jkiice.2016.20.7.1221
In this paper, we propose a modified rhombus slot UWB(Ultra Wide Band) antenna with fork-shaped feeding structure. The proposed antenna is modified rhombus slot structure and fork-shaped feeding structure to get ultra-wideband characteristics for UWB communication. Modified rhombus slot structure consists of slot shaped which eliminated upper and lower part of the basic rhombus slot. The antenna is designed on an FR-4 substrate of which the dielectric constant is 4.4, and its overall size is
, and its slot antenna size is
. After carrying out the simulation of each parameters, optimized values are obtained. From the fabricated and measured results, return loss of the proposed antenna satisfied Return Loss -10dB in 3.1 ~ 10.6 GHz. And measured results of gain and radiation patterns characteristics displayed for operating bands.
Performance of Carrier Frequency Offset Compensation using CAZAC Code in Time and Spatial Variant Underwater Acoustic Channel
Park, Jihyun ; Bae, Minja ; Kim, Jongju ; Yoon, Jong Rak ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1229~1236
DOI : 10.6109/jkiice.2016.20.7.1229
In underwater acoustic multipath channel, a performance of underwater acoustic (UWA) communication systems is affected by dynamic variation of boundary and high temporal and spatial variability of the channel conditions. Time and spatial variations of UWA channel induce a carrier frequency offset (CFO) since a phase and a frequency of received signal mismatch with a transmitting signal. Therefore, a performance of a phase shift keying underwater acoustic communication system is degraded. In this study, we have analyzed a performance of CFO estimation and compensation using a phase code in time and spatial variation channel. A constant amplitude zero autocorrelation (CAZAC) signal is applied as a phase code signal and its performance is evaluated in water tank. The bit error rate of a quadrature phase shift keying (QPSK) system with a phase code is improved about 4 to 10 times better than that without a phase code.
A Low-pass Filter with Wide-stop Band Using Radial-shaped Open Stub
Yoon, Ki-cheol ; Kim, Seong-cheol ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1237~1242
DOI : 10.6109/jkiice.2016.20.7.1237
In this paper, the low pass filter with harmonics suppression and rejection using parallel coupled-line and radial type open stub is presented. And the resultant characteristic of the proposed low pass filter is that the harmonics are suppressed and rejected in wide bandwidth due to the parallel coupled-line structure. The open stub of a low pass filter is constructed in radial type which can be used to adjust the size of filter. The size of the proposed low pass filter is
and the cut off frequency is 2.45 GHz. And the filter is economical in unit cost and can be constructed easily and has the merit of mass product because the filter is composed of distributed element. Also, the widely rejected harmonics is 128 % in the bandwidth and the insertion and return losses of the low pass filter are 1.07 dB and 19.5 dB, respectively.
Link Performance Analysis for Intra-Aircraft Wireless Communications in 4.4GHz
Cho, Moon-Je ; Jung, Bang Chul ; Park, Pangun ; Chang, Woohyuk ; Ban, Tae-Won ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1243~1248
DOI : 10.6109/jkiice.2016.20.7.1243
This paper investigated the channel link budget for Wireless Avionics Intra-Communication (WAIC) in 4.4GHz. The band 4.2~4.2GHz was allocated for the communication service among aeronautical applications in world radiocommunication conference (WRC). Wireless channels in aircraft was modelled by the combination of path loss, shadowing effect caused by obstacles, and fading caused by multipath signals. In addition, wireless channels in aircraft are categorized into 6 groups according to various locations of transmitter and receiver. We analyzed the channel link budget for the 6 channel groups in terms of maximum transmission distance and outage probability. Our analysis and intensive computer simulation results show that the propagation characteristics of group A, B, and F is superior to group C, D, E, and the propagation of group E is the most vulnerable. Also, these results can be utilized as basic reference for the channel analysis of intra-aircraft or similar environment.
Energy Efficient Transmit Antenna Selection Scheme in Multi-User Massive MIMO Networks
Jeong, Moo-Woong ; Ban, Tae-Won ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1249~1254
DOI : 10.6109/jkiice.2016.20.7.1249
Recently, there have been many researches which can achieve high data rate in multi-user massive MIMO networks while reducing the complexity in terms of both hardware and algorithm. In addition, many researches have been conduced to reduce the energy consumption in next generation mobile communication networks. In this paper, we thus investigated new transmit antenna selection scheme to achieve low computational complexity and enhance energy efficiency in multi-user massive MIMO networks. First, we introduced the optimal scheme based on Brute-Force searching to maximize the energy efficiency and then proposed new antenna selection scheme to dramatically reduce the computational complexity compared to the optimal scheme. As the number of transmit antennas increases, the complexity of the optimal scheme exponentially increases while the complexity of the proposed scheme linearly increases. Nevertheless, the energy efficiency performance gap between proposed and optimal schemes is not huge.
Energy Efficient Resource Allocation with Energy Harvesting in Cognitive Radio Networks
Lee, Kisong ; Lee, Woongsup ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1255~1261
DOI : 10.6109/jkiice.2016.20.7.1255
Recently, the energy harvesting technology in which energy is collected from the wireless signal which is transmitted by mobile communication devices, has been considered as a novel way to improve the life time of wireless sensors by mitigating the lack of power supply problem. In this paper, we consider the optimal sensing time and power allocation problem for cognitive radio systems, where the energy efficiency of secondary user is maximized while the constraint are satisfied, using the optimization technique. Based on the derived optimal solutions, we also have proposed an iterative resource allocation algorithm in which the optimal power and sensing time allocation can be found without excessive computations. The simulation results confirm that the proposed scheme achieves the optimal performance and it outperforms the conventional resource allocation schemes in terms of energy efficiency while the constraints are guaranteed to be satisfied.
New multiple access technology for Bluetooth to collect the movement pattern of children
Hwang, Seong-kyu ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1262~1268
DOI : 10.6109/jkiice.2016.20.7.1262
Bluetooth has been developed to be applied over the course of several versions in different environments. Especially low is moving to address the constraints, it gives a high utilization rate is faster than the Zigbee wireless LAN communication. To gather information on children`s environmental copper transition to multiple versions. There is one limitation of Bluetooth requirements to effectively apply the information collected by Bluetooth. At the same time need to collect several information actions, Bluetooth can not connect to one of only seven Slave Master. In this paper, in order to take advantage of the many benefits of Bluetooth to gather the information by operating the Bluetooth operates in Beacon deliver packets of 168 bits, and the pairing between the master and slave unnecessarily generate a regular signal a large number of connections simultaneously Information We consider how to apply the effective policy that can be collected.
Implementation of Emergency Evacuation Support System in Panic-type Disaster
Hwang, Jun-Su ; Choi, Young-Bok ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1269~1276
DOI : 10.6109/jkiice.2016.20.7.1269
Recently, natural disasters including earthquakes, tsunamis, floods, and snowstorms, in addition to disasters of human origin such as arson, and acts of terror, have caused numerous injuries and fatalities around the world. During such disasters, victims need to obtain information such as the exact location of the disaster and appropriate evacuation routes in order to relocate to safe areas. In this study, We propose the algorithm for Emergency Rescue Evacuation Support System(ERESS). In case a emergency disaster occurs, ERESS is possible to detect it quickly using through the movement of people. The mobile terminal analyzes behavior and location of indoor pedestrian. And it sends the result to the server. The server determines whether an emergency situation occurred or not based on the received transmission information. When an emergency situation occurs, the server will notify it to the mobile terminal. Then, indoor pedestrian conduct emergency evacuation using mobile terminal.
Power Allocation and Splitting Algorithm for SWIPT in Energy Harvesting Networks with Channel Estimation Error
Lee, Kisong ; Ko, JeongGil ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1277~1282
DOI : 10.6109/jkiice.2016.20.7.1277
In the next generation wireless communication systems, an energy harvesting from radio frequency signals is considered as a method to solve the lack of power supply problem for sensors. In this paper, we try to propose an efficient algorithm for simultaneous wireless information and power transfer in energy harvesting networks with channel estimation error. At first, we find an optimal channel training interval using one-dimensional exhaustive search, and estimate a channel using MMSE channel estimator. Based on the estimated channel, we propose a power allocation and splitting algorithm for maximizing the data rate while guaranteeing the minimum required harvested energy constraint, The simulation results confirm that the proposed algorithm has an insignificant performance degradation less than 10%, compared with the optimal scheme which assumes a perfect channel estimation, but it can improve the data rate by more than 20%, compared to the conventional scheme.
System Design for Real-Time Measuring of Power Quality and Harmonics Distortion using Digital Signal Processor
kim, Geun-Jun ; Kang, Bongsoon ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1283~1289
DOI : 10.6109/jkiice.2016.20.7.1283
Electrical energy is the essential resource for modern society. Recently, the demand for power was significantly increased. Increase of power demand has lead to a decrease in the power quality. Power quality in modern society has been an important factor that can cause a major problem throughout the home and general industry. Therefore, we need a system for preventing the power quality problems. To avoid power issues, it is important that the measurement of the power quality and initial response. In this paper, we propose real-time power quality measurement system and harmonics monitoring system. We design the system using DM240001 board include dsPIC33FJ256GP710A of microchip. This system can adapt three-phase three-wire system. And optimized the algorithm, we can measure momentary changes of the power system. In addition, designed system can measure harmonics distortion like to VTHD, ITHD and ITDD for 31th harmonics.
Enhanced Method for Preventing Malware by Detecting of Injection Site
Baek, Jaejong ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1290~1295
DOI : 10.6109/jkiice.2016.20.7.1290
Recently, as mobile internet usage has been increasing rapidly, malware attacks through user`s web browsers has been spreading in a way of social engineering or drive-by downloading. Existing defense mechanism against drive-by download attack mainly focused on final download sites and distribution paths. However, detection and prevention of injection sites to inject malicious code into the comprised websites have not been fully investigated. In this paper, for the purpose of improving defense mechanisms against these malware downloads attacks, we focus on detecting the injection site which is the key source of malware downloads spreading. As a result, in addition to the current URL blacklist techniques, we proposed the enhanced method which adds features of detecting the injection site to prevent the malware spreading. We empirically show that the proposed method can effectively minimize malware infections by blocking the source of the infection spreading, compared to other approaches of the URL blacklisting that directly uses the drive-by browser exploits.
A Hardware Design of Ultra-Lightweight Block Cipher Algorithm PRESENT for IoT Applications
Cho, Wook-Lae ; Kim, Ki-Bbeum ; Shin, Kyung-Wook ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1296~1302
DOI : 10.6109/jkiice.2016.20.7.1296
A hardware implementation of ultra-lightweight block cipher algorithm PRESENT that was specified as a block cipher standard for lightweight cryptography ISO/IEC 29192-2 is described in this paper. Two types of crypto-core that support master key size of 80-bit are designed, one is for encryption-only function, and the other is for encryption and decryption functions. The designed PR80 crypto-cores implement the basic cipher mode of operation ECB (electronic code book), and it can process consecutive blocks of plaintext/ciphertext without reloading master key. The PR80 crypto-cores were designed in soft IP with Verilog HDL, and they were verified using Virtex5 FPGA device. The synthesis results using
CMOS cell library show that the encryption-only core has 2,990 GE and the encryption/decryption core has 3,687 GE, so they are very suitable for IoT security applications requiring small gate count. The estimated maximum clock frequency is 500 MHz for the encryption-only core and 444 MHz for the encryption/decryption core.
Design of 0.5V Electro-cardiography
Sung, Min-Hyuk ; Kim, Jea-Duck ; Choi, Seong-Yeol ; Kim, Yeong-Seuk ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1303~1310
DOI : 10.6109/jkiice.2016.20.7.1303
In this paper, electrocardiogram (ECG) analog front end with supply voltage of 0.5V has been designed and verified by measurements of fabricated chip. ECG is composed of instrument amplifier, 6th order gm-C low pass filter and variable gain amplifier. The instrument amplifier is designed to have gain of 34.8dB and the 6th order gm-C low pass filter is designed to obtain the cutoff frequency of 400Hz. The operational transconductance amplifier of the low pass filter utilizes body-driven differential input stage for low voltage operation. The variable gain amplifier is designed to have gain of 6.1~26.4dB. The electrocardiogram analog front end are fabricated in TSMC
CMOS process with chip size of
. Measurements of the fabricated chip is done not to saturate the gain of ECG by changing the external resistor and measured gain of 28.7dB and cutoff frequency of 0.5 - 630Hz are obtained using the supply voltage of 0.5V.
Influence of Tunneling Current on Threshold voltage Shift by Channel Length for Asymmetric Double Gate MOSFET
Jung, Hakkee ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1311~1316
DOI : 10.6109/jkiice.2016.20.7.1311
This paper analyzes the influence of tunneling current on threshold voltage shift by channel length of short channel asymmetric double gate(DG) MOSFET. Tunneling current significantly increases by decrease of channel length in the region of 10 nm below, and the secondary effects such as threshold voltage shift occurs. Threshold voltage shift due to tunneling current is not negligible even in case of asymmetric DGMOSFET to develop for reduction of short channel effects. Off current consists of thermionic and tunneling current, and the ratio of tunneling current is increasing with reduction of channel length. The WKB(Wentzel-Kramers-Brillouin) approximation is used to obtain tunneling current, and potential distribution in channel is hermeneutically derived. As a result, threshold voltage shift due to tunneling current is greatly occurred for decreasing of channel length in short channel asymmetric DGMOSFET. Threshold voltage is changing according to bottom gate voltages, but threshold voltage shifts is nearly constant.
Smart Affect Jewelry based on Multi-modal
Kang, Yun-Jeong ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1317~1324
DOI : 10.6109/jkiice.2016.20.7.1317
Utilizing the Arduino platform to express the emotions that reflect the colors expressed the jewelry. Emotional color expression utilizes Plutchik`s Wheel of Emotions model was applied to the similarity of emotions and colors. It receives the recognized value from the temperature, lighting, sound, pulse sensor and gyro sensor of a smart jewelery that can be easily accessible from your smartphone processes that recognize and process the emotion applied the rules of inference based on ontology. The emotional feelings color depending on the color looking for the emotion seen in context and applied to the smart LED jewelry. The emotion and the color combination of contextual information extracted from the recognition sensors are reflected in the built-in smart LED Jewelry depending on the emotions of the wearer. Take a light plus the emotion in a smart jewelery can represent the emotions of the situation, the doctor will be able to be a tool of representation.
The National Highway, Expressway Tunnel Video Incident Detection System performance analysis and reflect attributes for double deck tunnel in great depth underground space
Kim, Tae-Bok ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1325~1334
DOI : 10.6109/jkiice.2016.20.7.1325
The video incident detection System is a probe for rapid detecting the walker, falling, stopped, backwards, smoke situation in tunnel. Recently, the importance is increases from the downtown double deck tunnel in great depth underground space, but the legal basis is weak and the vulnerable situation experimental data. So, In this paper, we introduce a long-term log data analysis information in the tunnenl video incident detection system installed and experimental results in order to verify the feasibility of apply to video incident detection system for the double deck tunnel. It is proposed a few things about derives the problem of existing video incident detection system, improvements and reflect attributes for double deck tunnel. The contents described in this paper will contribute to refine the prototype of video incident detection system will apply to future double deck multi-layer tunnels.
Protocol converting method for the Real-time Safety Supervision System in Railway
Ahn, Jin ; Kim, Sung-Min ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1335~1341
DOI : 10.6109/jkiice.2016.20.7.1335
For the safety of train operation, monitoring & supervisory systems for train, signal, power, communication and facilities is operating independently in another place, so, its sensors are interdependently connected from each other to transfer gathering datas of sensing to control center. A Goal of Real-time railway safety supervision system is to improve the safety oversight efficiency and to prevent accidents by means of hazard prediction based on big data by integrating all of safety sensing data in wayside of railway, and the System is requested acquisition of all of sensing data of safety. So, we need special method of protocol converting for the purpose of integrating all of detecting data concerning safety without any changing application. In this paper we investigate the existing converting method in communication field, and propose a new progress to converting protocol adding function of transfer using XML file, and implemented this algorithm, and tested with example packets, finally.
Design of Software Quality Evaluation Model for IoT
Chung, Su-min ; Choi, Jae-hyun ; Park, Jea-won ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1342~1354
DOI : 10.6109/jkiice.2016.20.7.1342
As Internet, and hardware technology are in rapid process, using rate and penetration rate of Internet of Things are increasing. Internet of Things is the physical objects with network which embedded with electronics, software, sensors, and network. Smart Home-kit to operate refrigerators, washing machines, light bulbs, and such internet of things by a smartphone has been realized. However, it is difficult to use a good quality of software based on IoT. It is because that the study related to quality evaluation of software based on IoT is deficient compared with increase amount of IoT devices. Software based on IoT includes mobility, transportability, real time accessibility and hardware characteristics. Therefore, it is necessary to have differentiated quality standards and quality model. Software quality evaluation model for IoT is proposed to satisfy these needs. Evaluation model is mapped by characteristics of IoT software based on ISO/IEC 25000`s quality characteristics. Scenario based studies were applied to quality model for verification.
A Development of Navigation Routes Recommendation System with Elements Analysis of Marine Leisure Activities
Kim, Bae-Sung ; Hwang, Hun-Gyu ; Shin, Il-Sik ; Lee, Jang-Se ; Yoo, Yung-Ho ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1355~1362
DOI : 10.6109/jkiice.2016.20.7.1355
Recently, the marine leisure are being emphasized with improving the quality of life style by increased income and spare time. Also, there is a increasement of people`s interest in marine leisure activities. But resources and facilities do not grow in proportion to the quantitative growth of the current marine leisure industry. Besides, a leisure ship operator tends to choose a simple or familiar route of the local area rather than a new leisure routes which are not explored due to lack of accessible areas information. This paper proposes a routes recommendation system in order to solve above problems based on marine resource database. The databases have been constructed through investigation and analysis of navigational information such as environmental conditions including weather conditions and sea status, field of marine leisure activities, tourist attractions and natural landscape, and marine leisure prohibited areas. Therefore we have developed and implemented the route recommendation system that provides various information necessary to route operation of leisure boats.
Prediction Based Dynamic Level of Detail in Flight Simulator
Kim, DongJin ; Lim, Juho ; Kim, Ki-Il ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1363~1368
DOI : 10.6109/jkiice.2016.20.7.1363
Fast rendering speed is one of key functions to provide realistic scenes in flight simulator. However, since flight simulator mostly operates with high volume terrain data, rendering speed is reduced and changed very rapidly when it handles file containing too much vertexs. So, previous schemes make use of Level of Details (LOD) scheme to prevent this problem. But, since LOD is applied after the large number of vertexs are detected, transition between scenes is not completely smooth. To solve this problem, in this paper, we propose a new dynamic LOD scheme which controls LOD level in advance through prediction of vertex overload. To verify the proposed scheme, we implement the proposed scheme in our flight simulation through OpenSceneGraph(OSG) and identify the reduced number of vertexs and enhanced Frame Per Second (FPS) by comparing real data with predicted one.
Depth Extraction of Integral Imaging Using Correlation
Kim, Youngjun ; Cho, Ki-Ok ; Kim, Cheolsu ; Cho, Myungjin ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1369~1375
DOI : 10.6109/jkiice.2016.20.7.1369
In this paper, we present a depth extraction method of integral imaging using correlation between elemental images with phase only filter. Integral imaging is a passive three-dimensional (3D) imaging system records ray information of 3D objects through lenslet array by 2D image sensor, and displays 3D images by using the similar lenslet array. 2D images by lenslet array have different perspectives. These images are referred to as elemental images. Since the correlation can be calculated between elemental images, the depth information of 3D objects can be extracted. To obtain high correaltion between elemental images effectively, in this paper, we use phase only filter. Using this high correlation, the corresponding pixels between elemental images can be found so that depth information can be extracted by computational reconstruction technique. In this paper, to prove our method, we carry out optical experiment and calculate Peak Sidelobe Ratio (PSR) as a correlation metric.
Visual quality enhancement of three-dimensional photon-counting integral imaging using background noise removal algorithm
Cho, Ki-Ok ; Kim, Young jun ; Kim, Cheolsu ; Cho, Myungjin ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1376~1382
DOI : 10.6109/jkiice.2016.20.7.1376
In this paper, we present a visual quality enhancement technique for conventional three-dimensional (3D) photon counting integral imaging using background noise removal algorithm. Photon counting imaging can detect a few photons from desired objects and visualize them under severely photon-starved conditions such as low light level environment. However, when a lot of photons are generated from background, it is difficult to detect photons from desired objects. Thus, the visual quality of the reconstructed image may be degraded. Therefore, in this paper, we propose a new photon counting imaging method that removes unnecessary background noise and detects photons from only desired objects. In addition, integral imaging can be used to obtain 3D information and visualize the 3D image by statistical estimations such as maximum likelihood estimation. To prove and evaluate our proposed method, we implement the optical experiment and calculate mean square error.
Salt and Pepper Noise Removal using Linear Interpolation and Spatial Weight value
Kwon, Se-Ik ; Kim, Nam-Ho ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1383~1388
DOI : 10.6109/jkiice.2016.20.7.1383
Although image signal processing is used in many fields, degradation takes place in the process of transmitting image data by several causes. CWMF, A-TMF, and AWMF are the typical methods to eliminate noises from image data damaged under salt and pepper noise environment. However, those filters are not effective for noise rejection under highly dense noise environment. In this respect, the present study proposed an algorithm to remove in salt and pepper noise. In case the center pixel is determined to be non-noise, it is replaced with original pixel. In case the center pixel is noise, it segments local mask into 4 directions and uses linear interpolation to estimate original pixel. And then it applies spatial weight to the estimated pixel. The proposed algorithm shows a high PSNR of 24.56[dB] for House images that had been damaged of salt and pepper noise(P
Market trends and business opportunities of the smart insole technology
Park, Jae-Sue ; Park, Jung-Yong ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1389~1397
DOI : 10.6109/jkiice.2016.20.7.1389
This study was to evaluate opportunities for the commercialization of smart insole. smart technology is evolving to Insole. Pressure-sensitive sensor or an acceleration sensor is applied to create a balance of the feet and body, is also evolving for entertainment (sports, entertainment, etc.) and health care. Moreover, smart insole can fix an incorrect walking habit by sending a weight value measured by the sensor on a smartphone and during the movement, smart insole helps to correct body balance by measuring the center of gravity moving condition. However, smart tendency of the insole has yet to create a clear boundary in the entertainment and healthcare markets. This is because the fitness band, smart socks, smart shoes can also replace the benefits of a smart insole. Interestingly, the business opportunities are appearing more frequently in health care solution service of electrocardiogram, body temperature, blood pressure, etc., rather than smart devices.
Validation of Sensing Data Based on Prediction and Frequency
Lee, SunYoung ; Kim, Ki-Il ;
Journal of the Korea Institute of Information and Communication Engineering, volume 20, issue 7, 2016, Pages 1398~1405
DOI : 10.6109/jkiice.2016.20.7.1398
As wireless sensor networks become eligible as well as useful in several controled systems where surrounding environments are likely to be monitored, their stabilization become important research challenge. Generally, stabilization is mostly dependent on reliability of sensing value. To achieve such reliability in wireless sensor networks, the most of previous research work have tendency to deploy the same type of multiple sensor units on one node. However, these mechanisms lead to deployment problem by increasing cost of sensor node. Moreover, it may decrease reliability in the operation due to complex design. In order to solve this problem, in this paper, we propose a new validation scheme which is based on prediction and frequency value. In the proposed scheme, we take into exceptional cases account, for example, outbreak of fire. Finally, we demonstrate that the proposed scheme can detect abnormal sensing value more than 13 percent as compared to previous work through diverse simulation scenarios.