An Electromagnetic Lock Actuated by a Mobile Phone Equipped with a Self-Made Laser Pointer

Perng, Jau-Woei; Hsieh, Tung-Li

doi:10.3390/electronics8121524

Cited by 4 publications

(3 citation statements)

References 28 publications

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“…The highest score value got 222.6 from a maximum of 255. Lock system based Short Message Service (SMS) gateway (Hamas et al, 2021), unlocked by phone (Perng & Hsieh, 2019), and RFID with access to unlock using Electronic Kartu Tanda Penduduk (E-KTP) (Najib et al, 2021) has disadvantage where if the user forgets left their phone and E-KTP, they can't access to unlock and lock. The research conducted by (Hoque & Davidson, 2019) just discussed the reed sensor that can detect if the door environment opens and does not discuss how to give the lock system yet.…”

Section: Literature Reviewmentioning

confidence: 99%

Safe-Deposit Box Using Fingerprint and Blynk

et al. 2022

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The criminal act of robbery really makes people nervous, especially in urban areas. There are many ways that can be done to avoid robbery at home and office, such as increasing the security system in the house to protect valuables. Safe-deposit boxes are items that are used to store valuables. Safe-deposit box is used to prevent against theft who want to take valuable things. To increase security, technology has begun to develop for security in various ways, such as fingerprints, passwords, and buzzers. This research will focus on a safe security system using a fingerprint that is connected to the internet with the Blynk application so that the user will get a safe notification when the servo condition is open or closed. The fingerprint sensor is an access to open doors, the Arduino Uno microcontroller is a storage for command logic on the system, the stepper motor acts as an activator for opening and closing servo and the Esp8266 module as a Wi-Fi module that connects equipment components using the internet network with the Blynk application which is used as distance control and notification of incoming access to homes with the concept of Internet of Things (IoT).

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Section: Literature Reviewmentioning

confidence: 99%

Safe-Deposit Box Using Fingerprint and Blynk

et al. 2022

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“…A six-degree-of-freedom (6-DOF) robot arm with a gripper will conduct experiments to demonstrate the effectiveness of the proposed system. Perng et al reported "An Electromagnetic Lock Actuated by a Mobile Phone Equipped with a Self-Made Laser Pointer" [5]. The main purpose of this study was to create an acousto-optic control lock device to convert electrical signals with a specific sound command using an acousto-optic conversion module, thereby improving the reliability and safety of opening or closing remote controlled door locks, such as car central locks or rolling doors.…”

Section: The Topics Of Intelligent Electronic Device and Its Applicatmentioning

confidence: 99%

Special Issue on Intelligent Electronic Devices

2020

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The second IEEE International Conference on Knowledge Innovation and Invention 2019 (IEEE ICKII 2019) was held in Seoul, South Korea, 12–15 July 2019. This special issue “Intelligent Electronic Devices” selects 13 excellent papers form 260 papers presented in IEEE ICKII 2019 conference about the topics of Intelligent Electronic Devices. The main goals of this special issue are to encourage scientists to publish their experimental and theoretical results in as much detail as possible, and to discover new scientific knowledge relevant to the topics of electronics.

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“…Current non-implantable bone conduction research focuses on analyzing the transducer’s mechanical vibration signal [ 10 ] and the mathematical model of mechanical wave transmission in the skull [ 11 ]. A study of the transducer’s mechanical model shows that the transducer’s frequency can be described as the vibration of the mass and the damping and elastic coefficient of the system [ 12 ]. The study partly discusses the loss of mechanical wave transmission paths in soft tissue [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

A Novel Dentary Bone Conduction Device Equipped with Laser Communication in DSP

Perng

Hsieh

Guo

2021

Sensors

Self Cite

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In this study, we designed a dentary bone conduction system that transmits and receives audio by laser. The main objective of this research was to propose a complete hardware design method, including a laser audio transmitter and receiver and digital signal processor (DSP) based digital signal processing system. We also present a digital filter algorithm that can run on a DSP in real time. This experiment used the CMU ARCTIC databases’ human-voice reading audio as the standard audio. We used a piezoelectric sensor to measure the vibration signal of the bone conduction transducer (BCT) and separately calculated the signal-to-noise ratio (SNR) of the digitally filtered audio output and the unfiltered audio output using DSP. The SNR of the former was twice that of the latter, and the BCT output quality significantly improved. From the results, we can conclude that the dentary bone conduction system integrated with a DSP digital filter enhances sound quality.

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An Electromagnetic Lock Actuated by a Mobile Phone Equipped with a Self-Made Laser Pointer

Cited by 4 publications

References 28 publications

Safe-Deposit Box Using Fingerprint and Blynk

Safe-Deposit Box Using Fingerprint and Blynk

Special Issue on Intelligent Electronic Devices

A Novel Dentary Bone Conduction Device Equipped with Laser Communication in DSP

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