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Electronic systems are becoming always more complex and consequently more subject to defect. For safety, security and integrity reasons, wire diagnosis is crucial. The emerging of sensor networks and connected objects has created the need for embedded and non invasive fault diagnosis solutions. Actual systems rely on multi-carrier reflectometry to locate upcoming defects on wires, though their precision...
A physically unclonable function (PUF) circuit extracts unique identification data from device variability, and it is an important technology for authentication and cryptographic key generation, as a countermeasure against counterfeiting of devices, etc. We developed and evaluated a PUF chip that included several PUF architectures using the SOTB technology. We designed a prototype of a USB stick-sized...
The security of Internet of Things (IoT) devices including consumer products has been pointed out. Therefore, authenticated encryptions, which perform both encryption and authentication, have been attracted attention. SIMON-JAMBU is a lightweight authenticated encryption and it passed the second round of CAESAR which determines the standard of authenticated encryptions. Regarding security of hardware,...
In a convolutional neural network (CNN), convolution calculation can account for about 90% of the total processing work. This paper presents the design of a convolution hardware accelerator (CHA) which can support efficient matrix multiplication to speed up the convolution calculation. In our experiment, when a RISC-V Rocket processor is used to simulate the operation of a CNN for image classification,...
The semiconductor counterfeiting has become a serious problem. Physical Unclonable Function (PUF) is attracted attention as a countermeasure. PUF can generate a unique ID for each device utilizing a variation during manufacturing. However, PUF is vulnerable to modeling attacks. In addition, it is reported that side-channel information allows modeling attacks effectively. To secure the safety of semiconductors,...
It is costly to have a conventional three phase electricity supply system to service sparsely-populated rural areas. As a solution, the single wire earth return (SWER) network is widely used which has only one overhead conductor delivering power and the ground is used for the return path. This paper presents an on-line monitoring system, currently under development, to provide real-time power quality...
In the field of underwater acoustic communication, because of the signal transmission distance is shorter, generally uses the copper cable transmission. When the signal is needed to be transmitted in a long distance, its anti interference and attenuation will seriously affect the reliability of the transmission. Optical fiber transmits in higher speed and stronger antijamming. Its application is more...
This paper presents a Controller Area Network (CAN) communication system in the Field-Programmable Gate Array (FPGA), which is Xilinx Artix-7. Hardware circuits and the software flow char are described in detail. The reusable IP (Intellectual Property) technology is used in FPGA as the core controller. In addition, the CAN communication system is implemented by System-on-a-Programmable-Chip (SOPC)...
Wire fault detection has been identified as a crucial need for aircraft safety. Several accidents were reportedly caused by intermittent faults such as arcs, encouraging studies on their detection. Detecting intermittent defects is only possible if the detection device is embedded within or close to the harness and it requires a very fast and efficient method, robust to noise. The recently presented...
This paper presents readout circuitry for surface acoustic wave (SAW) sensors based on a single chip Actel Microsemi Field Programmable Gate Array (FPGA). It measures the difference frequency output from SAW gas sensor in real time, processes the signal and transfers the data through serial port. The impulse noise filtering is done using median filtering method and the data is smoothed using moving...
Acupuncture is an effective treatment for various diseases in traditional Chinese medicine. However, the detailed mechanisms of how acupuncture information is transmitted in nervous system are still not clear. Thus, the high-performance simulation of the electroacupuncture dynamics is of vital importance in the field of computational neuroscience, which requires a hardware platform with high computational...
In surveillance and monitoring applications, motion detection using commercial cameras with off-line high-level algorithm processing is not efficient. They have to force the high-level processor continuously analyze the acquired high-resolution images. This causes a large waste of power, since there are no events in most of the cases. Embedding low-level image processing on-chip will make the system...
In this paper, we present a new approach to interrogate sensors using Near Field Communication (NFC). This approach utilizes NFC data exchange format (NDEF) to report the sensor data directly to a cloud service through a smartphone. The new advantage in this approach is that no smartphone application is needed to move the data from the sensor to the cloud. We also discuss advantages and disadvantages...
In this paper, the method of downsizing 4K uncompressed video signal generator is introduced. It is required large data transmission bandwidth to output uncompressed 4K video signal. A SSD is known as a storage device with large data transmission bandwidth. The conventional technology for producing 4K uncompressed video output was redundant arrays of inexpensive disks technology using multiple SSDs...
The high-accuracy Analog-to-Digital Converter (ADC) has been widely utilized in various products such as digital audio systems. The ΔΣ modulator is an important component for constituting such products, and its evaluation is an important process in product design. However, the general evaluating method has problems in terms of equipment and design costs. For this reason, a low-cost evaluation method...
Pedestrian detection is a challenging work in advanced driver-assisted systems (ADAS) for autonomous vehicles. Among many feature extraction algorithms, histograms of oriented gradients (HOG) has been widely used for pedestrian detection. However, the original HOG involves complicated arithmetic operations and requires large buffers to store the extracted features. In this paper, we propose several...
Design of a control module for millimeter wave imaging system based on FPGA is presented in this paper. There are four parts in the module: scanning control module of antenna array, data acquisition and storage control module, ethernet transmission control module and mechanical scanning platform control module.
High Efficiency Video Coding (HEVC), a modern video compression standard, exceeds the predecessor H.264 in efficiency by 50%, but with cost of increased complexity. It is one of main research topics for FPGA engineers working on image compression algorithms. On the other hand high-level synthesis tools after few years of lower interest from the industry and academic research, started to gain more...
As fault-tolerant Networks-on-Chip (NoCs) become prevalent in reliable systems, their overhead must be accurately evaluated. In this paper, we evaluate the overhead of a soft error resilient real-time NoC router for ASICs in terms of area and power. We employ a power analysis framework and load profiles that provide accurate power figures. Furthermore, we analyze the power behavior in normal operation...
This paper proposes a placement algorithm using analytical placement (AP) and low-temperature simulated annealing (SA) for mixed-grained reconfigurable architecture (MGRA) with dedicated carry chains. The target MGRAs are assumed to have fine-grained blocks with dedicated carry chains to implement high-speed adders/subtracters and coarse-grained blocks to implement complicated arithmetic operations...
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