Yeong-Lin Lai

Vlsi Implementation Of The Motion Estimator With Two-dimensional Data-reuse

This paper describes the VLSI implementation with a two-dimensional (2-D) data-reuse architecture for a full-search block-matching algorithm. Based on a one-dimensional processing element (PE) array and two data-interlacing shift-register arrays, the proposed VLSI architecture can efficiently reuse data to decrease external memory accesses and save the pin counts. It also achieves 100% hardware utilization and a high throughput rate. In addition, the same chips can be cascaded for different block sizes, search ranges, and pixel rates.

Study and Implementation of RFID Eseals for Power Meters

The common solution is using the plastic-type sealsto protect the power meter. The purpose of sealing is toguarantee the identity and integrity of the power meter.However, the seals are easy to reach. Once the seals werebroken, it is simple to tamper the energy meter. In order toachieve the more security of power meter, a new class of electronic seals based on radio frequency identification (RFID)technology has been developed. The RFID seal is more costeffective than the smart power meter. It can be applied to todays environment for achieving the purpose of tamperproof.In this paper, we focused on this important aspect of electricity theft which has been a matter of serious concern for the powercompanies. We design and implement an innovative, secure, efficient, and flexible RFID eSeals application for power meter. It can be guaranteed for the integrity of power meter andenhance the efficiency.

A FUZZY-UPDATED CACHE OF AUTOMATA MATCHING FOR EMBEDDED NETWORK PROCESSOR

Light-weight network gateways often employ a cost-effective embedded network processor and have received a strong demand for empowering content filtering services. In this regard, we were motivated to propose a specialized cache, fuzzy-updated cache automata matching (FCAM) circuit for accelerating the embedded network processors. Although automata matching algorithms are robust with deterministic matching time, there is still plenty of room for improving its average-case performance. The proposed FCAM employs cache to accelerate the root state and nonroot state with the multiple characters matching, and applies the fuzzy decision to improve the cache performance. In our experiment, the FPGA implementation of FCAM can perform at the rate of 10.5 Giga bits per second with the patterns of 25,642 bytes. This performance is superior to previous matching hardware in terms of throughput and pattern set.

An intelligent IoT emergency vehicle warning system using RFID and Wi-Fi technologies for emergency medical services

BACKGROUND Collisions between emergency vehicles for emergency medical services (EMS) and public road users have been a serious problem, impacting on the safety of road users, emergency medical technicians (EMTs), and the patients on board. OBJECTIVE The aim of this study is to develop a novel intelligent emergency vehicle warning system for EMS applications. METHODS The intelligent emergency vehicle warning system is developed by Internet of Things (IoT), radio-frequency identification (RFID), and Wi-Fi technologies. RESULTS The system consists of three major parts: a system trigger tag, an RFID system in an emergency vehicle, and an RFID system at an intersection. The RFID system either in an emergency vehicle or at an intersection contains a controller, an ultrahigh-frequency (UHF) RFID reader module, a Wi-Fi module, and a 2.4-GHz antenna. In addition, a UHF ID antenna is especially designed for the RFID system in an emergency vehicle. The IoT system provides real-time visual warning at an intersection and siren warning from an emergency vehicle in order to effectively inform road users about an emergency vehicle approaching. CONCLUSION The developed intelligent IoT emergency vehicle warning system demonstrates the capabilities of real-time visual and siren warnings for EMS safety.

A Non-Repudiated and Intelligent RFID Medication Safety Management System

AbstractRadio frequency identification (RFID) technology is a significant solution for homeland and cyber defense. Patient and cyber safety issues have been regarded as the most important quality policy of hospital management. Enhancing patients’ safety and reducing medication errors are priority issues of the World Health Organization (WHO). With the increasing number of inpatients, medication safety is a major concern for doctors, pharmacists, and nurses. In this paper, we employ the RFID, digital certificate, and digital signature to enhance inpatient medication safety management. The proposed scheme can promptly present the information on the inpatient medication and improve the management of the inpatient medication safety. It not only enhances the quality of medical treatment but also provides non-repudiated and intelligent medication safety management. In our scheme, the automated medication dispensing machine (AMDM) is equipped with RFID tags and readers to improve the medication safety. The compr...

An intelligent health monitoring system using radio-frequency identification technology.

Long-term care (LTC) for the elderly has become extremely important in recent years. It is necessary for the different physiological monitoring systems to be integrated on the same interface to help oversee and manage the elderlys needs. This paper presents a novel health monitoring system for LTC services using radio-frequency identification (RFID) technology. Dual-band RFID protocols were included in the system, in which the high-frequency (HF) band of 13.56 MHz was used to identify individuals and the microwave band of 2.45 GHz was used to monitor physiological information. Distinct physiological data, including oxyhemoglobin saturation by pulse oximetry (SpO2), blood pressure, blood sugar, electrocardiogram (ECG) readings, body temperature, and respiration rate, were monitored by various biosensors. The intelligent RFID health monitoring system provided the features of the real-time acquisition of biomedical signals and the identification of personal information pertaining to the elderly and patients in nursing homes.

Image Segmentation Method with Positron Emission Tomography Time Sequence Images

Positron emission tomography(PET)images are often used to detect physiology function.However,PET images have more blurs than anatomic images,such as magnetic resonance imaging(MRI)and computed tomography(CT).With the graylevel of PET images,Doctors need to manually obtain the region of interest(ROI).THis paper presents a PET image segmentation technology based on the wavelet theory.Through sampling,recombination,and fetching the thresholds of images,theimage segmentation with 1960 dynamic PET images of abdominal organs were conducted. Compared with a sigle PET image, the image segmentation technology proposed can accurately and rapidly identify the boundaries of organs,such as the small intestines,the liver,and the kidney,as well as efficiently provide the ROI information for doctors.

Time sequence image analysis of positron emission tomography using wavelet transformation

This paper presents the time sequence image analysis technique of positron emission tomography (PET) using a wavelet transformation method. The abdominal cavity of a person taking [18F]Fluoro-2-deoxy-2-D-glucose (18F-FDG) was scanned by the dynamic PET. The organ selection with dynamic PET images was conducted by the wavelet transformation to implement automatic selection of the region of interest (ROI). The image segmentation was carried out by the processes of sampling, wavelet transformation, erosion, dilation, and superimposition. Wavelet constructed image (WCI) contours were created by sampling 512 images from 1960 consecutive dynamic sequence PET images. The image segmentation technology developed can help doctors automatically select ROI, accurately identify lesion locations of organs, and thus effectively reduce human operation time and errors.

Three-Dimensional Location Measurement System Constructed by Dual Cameras

This paper presents a three-dimensional (3-D) location measurement system constructed by dual cameras. An artificial neural network (ANN) model is used to analyze the 3-D location measurement system implemented with twin pinhole cameras. Evaluation by simulated data set from a mathematic model and real data set demonstrates that the ANN model can be used for interpolation of the special coordinates. The mathematical model of the dual cameras can calculate the depth information of an objects position and can be used for simulation data to test the ANN model. The images captured by the dual cameras are used to estimate the depth information as the real data test. The ANN is trained by the simulated and real data. Back-propagation neural network (NN) is adopted as a function interpolation purpose. High relation exits between the input coordinates and the estimated coordinates for real and simulated data sets.

Construction of a Real-Time and Secure Mobile Ticket System

With the technology improving, many content-services have been digitalized constantly in our daily life. To be more convenient and efficient, many kinds of high technological products have also been personalized, mobilized, and people can handle their businesses at any time from anywhere. For example, mobile users can perform the Internet transactions via mobile devices (such as cell phone and Personal Digital Assistant). Nowadays, the cell phone is not only used in communication, but it can be combined with Personal Digital Assistant (PDA) functions. The progress of technology makes the commercial activities efficient; moreover, it also provides consumers with more convenient and intimate services. On the basis of the tendency, we implement a digital valueadded services platform via PDA in this research. We integrate the related cryptography mechanisms (for example: public key, secret key cryptography system and digital signature) wireless and SQL technologies to construct a real-time and secure mobile ticket system. The consumer can use a mobile device to get a requested value-added service such that the buyers and sellers can perform a secure transaction. Therefore, the security and reliability of the system are assured in our scheme.