December 2024
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Publications (67)
November 2024
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11 Reads
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
This brief introduces an innovative recursive discrete cosine transform (DCT) algorithm characterized by its exceptional precision and minimal multiplication requirements. Through the strategic implementation of data reordering and “q” value adjustment schemes, the proposed algorithm entails only a single constant-multiplication operation featuring a fixed cosine coefficient within the iterative phase. By judiciously selecting an appropriate “q” value (q = 41), it achieves outstanding results, reaching peak signal-to-noise ratios (PSNRs) of 94.9 and 100.9 dB under 18-bit and 20-bit word length (WL) conditions, respectively, in terms of decimal places. Notably, the proposed algorithm substantially diminishes the number of multiplications by 86.08%, offset by an increase of 2688 additions. The proposed design has a simpler structure and utilizes fewer hardware resources. In field programmable gate array (FPGA) implementation, the device is composed of 43 combinational adaptive look-up tables (ALUTs) specifically allocated for constant multiplication (CM). Overall, the proposed accelerator totally takes 158 combinational ALUTs, 65 registers, a 960-bit read-only memory (ROM), and a 1024-bit random access memory (RAM) in hardware realization and can be operated at a maximum frequency of 156.62 MHz. Therefore, it is particularly well-suited for VLSI implementation in a parallel calculation of Mel-scale frequency cepstral coefficients (MFCCs).
August 2024
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2 Reads
April 2024
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1 Citation
October 2023
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1 Citation
October 2023
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1 Read
July 2023
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2 Reads
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3 Citations
April 2023
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1 Read
March 2023
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61 Reads
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2 Citations
From traditionally handmade items to the ability of people to use machines to process and even to human-robot collaboration, there are many risks. Traditional manual lathes and milling machines, sophisticated robotic arms, and computer numerical control (CNC) operations are quite dangerous. To ensure the safety of workers in automated factories, a novel and efficient warning-range algorithm is proposed to determine whether a person is in the warning range, introducing YOLOv4 tiny-object detection algorithms to improve the accuracy of determining objects. The results are displayed on a stack light and sent through an M-JPEG streaming server so that the detected image can be displayed through the browser. According to the experimental results of this system installed on a robotic arm workstation, it is proved that it can ensure recognition reaches 97%. When a person enters the dangerous range of the working robotic arm, the arm can be stopped within about 50 ms, which will effectively improve the safety of its use.
October 2022
Citations (38)
... For example, linkage or gear-driven hands with high gripping force, such as SARAH [77], Robotiq 3-Finger [78], and Schunk hand [83], are ideal for handling large and heavy parts. These tasks commonly include automated loading and unloading on production lines or operations like battery recycling [123,124]. Small-part assembly tasks like the 3C electronic product line [125] favor fingertip-grasping hands, such as the Mini X-hand [96] and CoMPS hand [100]. For soft object sorting and packaging scenarios [21], dexterous hands need to adapt to various product shapes without causing damage. ...
- Citing Conference Paper
July 2023
... This method collects context information from various sensors and integrates it with operational and business intents to determine emergencies, using machine learning (ML) and AI for ecient and automated analysis. Correia et al. [15] illustrated an application of Weightless Neural Networks (WNN) for video detection on edge devices, aiming to perform real-time human action recognition for quality, health, safety, and environmental compliance in industrial environments without using accelerators such as VPUs, GPUs, and TPUs. Lee et al. [16] discussed a novel and ecient warningrange algorithm to ensure worker safety in automated factories, utilizing YOLOv4 tiny-object detection to enhance object determination accuracy. The results are displayed on a stack light and sent via an M-JPEG streaming server for browser viewing. ...
- Citing Article
- Full-text available
March 2023
... Berbagai jenis palletizer digunakan, beberapa jenis utamanya adalah gantry, cartesian, dan sperichal. Robot gantry disebut sebagai bentuk khusus dari robot cartesian, yang menggunakan dua sumbu X. Sumbu tambahan digunakan untuk memungkinkan robot menangani beban dan gaya yang lebih besar dengan membagi beban di antara dua sumbu tanah, sehingga robot ini dianggap ideal untuk mengambil dan meletakkan muatan berat atau memuat dan membongkar komponen [8], [9]. Robot palletizer carton box digunakan untuk menyusun boks pada posisi yang ditentukan sesuai dengan pola tertentu, sehingga penyimpanan, penanganan, bongkar muat, transportasi, dan kegiatan logistik lainnya dari carton box dapat terwujud [10], [11]. ...
- Citing Article
- Full-text available
December 2021
... Inertial Measurement Units (IMUs): Without IMUs, the determination of MR devices' orientation and movement, as well as the users, would not be possible. Through accelerometers, gyroscopes, and magnetometers, as a calibration components, allow accurate moving of digital objects without effort and with good tracking [28]. ...
- Citing Conference Paper
September 2021
... The growing prevalence of artificial intelligence (AI) has a substantial impact on manufacturing companies in particular (Teerasoponpong & Sopadang 2021). Considerable potential, for example in the optimization of production processes (Cheng et al. 2021), provides these enterprises with the opportunity to improve their economic situation. On the other hand, however, there is also a risk of losing competitiveness if the new technology is not implemented (Dwivedi et al. 2019). ...
- Citing Conference Paper
September 2021
... Proces produkcyjny składa się z działań, które prowadzą do wytworzenia z materiałów, półfabrykatów, części maszyn i ich zespołów gotowych wyrobów [19,21]. Podstawową częścią procesu produkcyjnego jest proces technologiczny [11,12]. ...
- Citing Article
- Full-text available
October 2021
... Most of the state-of-art papers dealing with the issue of automation of glue deposition exploit a non-contact deposition system based on a spraying gun moved by robot, with the workpiece placed on a worktop [7,8,17]. On the other hand, in fields of application other than the footwear industry, gluing systems with a fixed syringe and the workpiece moved by the robot were proposed too [18]. ...
- Citing Conference Paper
November 2018
... The progress in robotics has expanded the use of robot arms from traditional industrial spaces to the diverse outdoors. Originally found in factories and hospitals, robot arms, designed to imitate human limbs, are now being used in outdoor places like gardens, farms, forests, job sites, cities, and even underwater [1][2][3][4][5][6]. Our focus is on these robot arms, known for their ability to perform detailed tasks with their human-like limbs. ...
- Citing Conference Paper
April 2018
... Applications of vision guided robots include part assembly [25], bin picking [26], inspection [27] etc. These robots can either have the camera mounted in a fixed position with a fixed field of view (eye-to-hand configuration), or have the camera mounted on the hand of the robot (eye-in-hand configuration), so that new images can be acquired by changing the point of view of the camera. ...
- Citing Conference Paper
April 2018
... Nowadays, CNC machines allows the machine working without human presence for a long period of time [8]. Loading a set of programs and night operation of the machine is a common practice [9]. ...
- Citing Article
- Full-text available
January 2017
MATEC Web of Conferences