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Design of Intelligent Window Automatic Monitoring System Based on Microcontroller Control
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作者 Liyan Gao Rongfang Zong 《Journal of Electronic Research and Application》 2024年第4期34-40,共7页
To ensure the safety of residents’lives and property by using automatic opening and closing of ordinary windows,this article designs an intelligent window automatic monitoring system.The article proposes a software a... To ensure the safety of residents’lives and property by using automatic opening and closing of ordinary windows,this article designs an intelligent window automatic monitoring system.The article proposes a software and hardware design scheme for the system,which comprises a microcontroller control module,temperature and humidity detection module,harmful gas detection module,rainfall detection module,human thermal radiation induction module,Organic Light-Emitting Diode(OLED)display module,stepper motor drive module,Wi-Fi communication module,etc.Users use this system to monitor environmental data such as temperature,humidity,rainfall,harmful gas concentrations,and human health.Users can control the opening and closing of windows through manual,microcontroller,and mobile application(app)remote methods,providing users with a more convenient,comfortable,and safe living environment. 展开更多
关键词 Smart window Automatic monitoring STM32 microcontroller Mobile application
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Using IoT to Smart Security Door System with Face Tracking Camera
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作者 Amer Nizar AbuAli 《Intelligent Information Management》 2024年第4期157-175,共19页
Security is a serious concern, whether it may be the security of assets, data and human life. Providing humans with security and safety for their belongings and items is an important need. A smart lock door project/ w... Security is a serious concern, whether it may be the security of assets, data and human life. Providing humans with security and safety for their belongings and items is an important need. A smart lock door project/ with different types of methods for entry, like fingerprint and authentication PIN code is suggested with an unnoticeable face tracking camera capturing a photo in case of error data entry. It is to be controlled via the user’s smartphone using Blynk with the implementation of IoT. This technology is made with two microcontrollers. ESP32 is used to control the solenoid lock, fingerprint sensor and keypad. ESP32-CAM is used to capture a photo and send it to the owner’s smartphone to be viewed on Telegram application. Many conclusions are extracted from system results, as well as suggested ideas for future work. 展开更多
关键词 SECURITY Block Diagram microcontroller Bluetooth Dual Mode
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Cost-Effective Monitoring of the Fuel Air Equivalence-Ratio with a Lambda Sensor and a Microcontroller in a Downdraft Biomass Gasifier
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作者 Jean Fidele Nzihou Salou Hamidou +2 位作者 Ousmane Zoundi Frederic Ouattara Bila Gerard Segda 《Open Journal of Applied Sciences》 2024年第2期545-560,共16页
The operation of biomass treatment devices such as gasifiers is based on the control of key parameters that play an important role in product formation. These include: temperature, excess oxygen, relative humidity and... The operation of biomass treatment devices such as gasifiers is based on the control of key parameters that play an important role in product formation. These include: temperature, excess oxygen, relative humidity and biomass composition. This work focuses on excess oxygen and temperature. Unfortunately, flue gas oxygen analyzers are expensive and not accessible to small industries. However, the equivalence ratio is linked to excess oxygen and has the advantage of not depending on biomass composition. This study therefore focuses on the design and development of a device for controlling this equivalence ratio by measuring oxygen concentration using a self-propelled Lambda probe, and a system for monitoring this equivalence ratio using an Arduino Uno 3 microcontroller. The temperature is recorded with an accuracy of ±1.5°C. For a heating time of 10 minutes, the response time to temperature change is around 3 seconds, which is sufficient for the device to function properly. This simple device is an efficient and cost-effective means of checking the equivalence ratio. 展开更多
关键词 Equivalence Ratio Biomass GASIFICATION Lambda Sensor microcontroller C++
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Design of a Microcontroller-Based Data Acquisition System for Ground Weather Observations: Evaluation of Radio Refractivity of Air
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作者 Amar Adane Ania Ali Yahia +1 位作者 Essaid Mameri Abd-El-Hamid Adane 《International Journal of Communications, Network and System Sciences》 2014年第9期355-364,共10页
A meteorological data acquisition system is built using a PIC16F877A microcontroller and electric output-based sensors. This system is programmed in C language using the PCWH compiler. It is smart, accurate, cheap, sm... A meteorological data acquisition system is built using a PIC16F877A microcontroller and electric output-based sensors. This system is programmed in C language using the PCWH compiler. It is smart, accurate, cheap, small, light and easily movable. It is designed to automatically get instantaneous measurements of air temperature, atmospheric pressure, and relative humidity. Depending on their utilisation, these measurements are collected with repetition rate tuneable from one minute to one hour. They are displayed on LCD screen and transferred to a personal computer where they are stored and processed. As an application, such data are recorded in situ and used to estimate the radio refractivity of air near the ground in real time. This parameter is necessary to account for the propagation of radiofrequency waves through the lower atmosphere, during wireless transmissions. 展开更多
关键词 microcontroller Sensors C PROGRAMMING METEOROLOGY RADIO REFRACTIVITY
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Development of a Microcontroller Based DC Motor Speed Control System
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作者 O. O. Adejumo W. A. Azeez 《World Journal of Engineering and Technology》 2019年第4期634-639,共6页
This work reports the development of a microcontroller based control system to change the speed?of?a DC motor. Pulse Width Modulation?(PWM)?technique was used to control the amount of power delivered to the load (the ... This work reports the development of a microcontroller based control system to change the speed?of?a DC motor. Pulse Width Modulation?(PWM)?technique was used to control the amount of power delivered to the load (the DC motor) without dissipating any wasted power. The components and assembly of this microcontroller circuit are highlighted in this paper, and the constructed circuit tested. This device was used to control the speed of a rotating fan attached to a DC motor. The DC motor speed variations were read from a Tachometer connected to this motor and the results obtained show good agreement with our expectations. DC Motor speed microcontroller devices find applications in many areas of life, and its applications in small scale industrial settings will no doubt enhance the quest for development in a developing nation like ours. 展开更多
关键词 microcontroller DC MOTOR PULSE WIDTH Modulation CIRCUIT ROTOR
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Microcontroller Design Based on Dynamic Heterogeneous Redundancy Architecture
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作者 Ling Ouyang Ke Song +1 位作者 Wenjian Zhang Shuai Wei 《China Communications》 SCIE CSCD 2023年第9期144-159,共16页
Redundancy control can effectively enhance the stability and robustness of a system.Based on the conventional redundancy control switchover and majority arbitration strategy,this paper introduces the concept of hetero... Redundancy control can effectively enhance the stability and robustness of a system.Based on the conventional redundancy control switchover and majority arbitration strategy,this paper introduces the concept of heterogeneity and dynamics,constructs a dynamic heterogeneous redundancy-based microcontroller architecture DHR-MCU,and designs a fixed-leader distributed consensus algorithm that satisfies the program running state control of this architecture.The theoretical analysis and actual measurement of the prototype system prove that this architecture has good anti-attack and self-recovery capabilities under normal functions and performances and meets the general robust features in terms of safety and security. 展开更多
关键词 dynamic heterogeneous redundancy microcontroller distributed consensus algorithm generalized robustness
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A Continuous Health Monitoring System for Photovoltaic Array Using Arduino Microcontroller
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作者 P. Pounraj D. Prince Winston +1 位作者 S. Cynthia Christabel R. Ramaraj 《Circuits and Systems》 2016年第11期3494-3503,共10页
In this paper new technique is developed to monitor the health status of the PV panels in the array. For finding the health status short circuit current is measured continuously over a fixed time period. This techniqu... In this paper new technique is developed to monitor the health status of the PV panels in the array. For finding the health status short circuit current is measured continuously over a fixed time period. This technique can classify the health status into four categories such as Healthy, Low Fault, Medium Fault and High Fault. By this classification faulty operation can be rectified and power generation may be improved. In case of high faults, PV panels can be protected. The cost requirement for the implementation is very low. The proposed technique is implemented in MATLAB Simulation and hardware. The array considered in this paper is 2 × 2 Series Parallel. 展开更多
关键词 Photovoltaic (PV) Array Health Monitoring FAULT Arduino microcontroller
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Design and Implementation of Smart Power Voltage and Frequency Synchroniser in Power Distribution System
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作者 Isaac Kofi Mensah Prah Joseph Cudjoe Attachie 《Journal of Power and Energy Engineering》 2023年第4期1-16,共16页
Voltage and frequency are usually considered and assessed independently in the design and operation of electrical networks. However, these two are linked. Each and every malfunctioning electrical system has an impact ... Voltage and frequency are usually considered and assessed independently in the design and operation of electrical networks. However, these two are linked. Each and every malfunctioning electrical system has an impact on both voltage and frequency. This paper presents the opportunity for monitoring the distributed electrical energy by means of a system that monitors, controls, and provides a breakpoint based on high or low voltage and frequency tripping mechanism that avoids any damage to the load. The designed system comprised a switch mode power supply (SMPS), a direct digital synthesizer (DDS), and PIC16F876A microcontroller techniques for stable voltage and frequency outputs. Proteus design suite version 8.11 software and Benchcope SDS1102CN were used for modeling and simulation. The hardware prototype was implemented at a telecom cell site for data capturing and analysis. Test results showed that the implementation of the prototype provided stable and constant outputs of 222 V/50 Hz and 112 V/60 Hz which constituted 99% and 99.8% efficiency for voltage and frequency performance respectively. The paper also discusses different technologies that can be adopted by the system to mitigate voltage and frequency effects on customer appliances. 展开更多
关键词 Switch Mode Power Supply Direct Digital Synthesis Pulse Width Modulation H-Bridge Mosfet microcontroller FILTERING and Rectification
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Ultrasonic Sensor-Based Embedded System for Vehicular Collusion Detection and Alert
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作者 Joe Essien Calistus Chimezie 《Journal of Computer and Communications》 2023年第8期44-57,共14页
The efficacy of an automated collision detection system is contingent upon the caliber and volume of data at its disposal. In the event that the data is deficient, incongruous, or erroneous, it has the potential to ge... The efficacy of an automated collision detection system is contingent upon the caliber and volume of data at its disposal. In the event that the data is deficient, incongruous, or erroneous, it has the potential to generate erroneous positive or negative outcomes, thereby compromising the system’s credibility. The occurrence of false positives is observed when the system erroneously identifies genuine activity as collusion. The phenomenon of false negatives arises when the system is unable to identify instances of genuine collusion. Collusion detection systems are required to handle substantial volumes of data in real time, capable of analyzing relationships between different objects. The intricate nature of collusion can pose difficulties in devising and executing efficient systems for its detection. The present study proposes an automated anti-collision system that utilizes sensor devices to detect objects and activate an alert mechanism in the event that the vehicle approaches the object in close proximity. The study introduces a novel methodology for mitigating vehicular accidents by implementing a combined system that integrates collision detection and alert mechanisms. The proposed system comprises an ultrasonic sensor, a microprocessor, and an alarm system. The sensor transmits a signal to the microcontroller, which in turn sends a signal to the warning unit. The warning unit is designed to prevent potential accidents by emitting an audible warning signal through a buzzer. Additionally, the distance information is displayed on an LCD screen. The Proteus Design Suite is utilized for simulation purposes, while Arduino.cc is employed for implementation. 展开更多
关键词 Ultrasonic Sensor microcontroller Collision Detection Machine Learning Algorithms
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Intelligent 3-Way Priority-Driven Traffic Light Control System for Emergency Vehicles
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作者 Joe Essien Felix Uloko 《Open Journal of Applied Sciences》 2023年第8期1207-1223,共17页
The problem of traffic congestion is a significant phenomenon that has had a substantial impact on the transportation system within the country. This phenomenon has given rise to numerous intricacies, particularly in ... The problem of traffic congestion is a significant phenomenon that has had a substantial impact on the transportation system within the country. This phenomenon has given rise to numerous intricacies, particularly in instances where emergency situations occur at traffic light intersections that are consistently congested with a high volume of vehicles. This implementation of a traffic light controller system is designed with the intention of addressing this problem. The purpose of the system was to facilitate the operation of a 3-way traffic control light and provide priority to emergency vehicles using a Radio Frequency Identification (RFID) sensor and Reduced Instruction Set Computing (RISC) Architecture Based Microcontroller. This research work involved designing a system to mitigate the occurrence of accidents commonly observed at traffic light intersections, where vehicles often need to maneuver in order to make way for emergency vehicles following a designated route. The research effectively achieved the analysis, simulation and implementation of wireless communication devices for traffic light control. The implemented prototype utilizes RFID transmission, operates in conjunction with the sequential mode of traffic lights to alter the traffic light sequence accordingly and reverts the traffic lights back to their normal sequence after the emergency vehicle has passed the traffic lights. 展开更多
关键词 RFID Sensors microcontroller Traffic Light Control system RISC Architecture Intelligent systems
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Design of Intelligent Agricultural Greenhouse Environment Monitoring System
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作者 CHEN Ruizhou KONG Ming +1 位作者 JI Pengcheng LIU Hengxing 《Instrumentation》 2023年第2期40-48,共9页
Aiming at the problem of greenhouse environmental information collection in agricultural production,this paper designs a greenhouse monitoring system based on STM32 microcontroller.The system uses STM32F103 series MCU... Aiming at the problem of greenhouse environmental information collection in agricultural production,this paper designs a greenhouse monitoring system based on STM32 microcontroller.The system uses STM32F103 series MCU as the main control unit,which is used to receive the detection results of the sensor.The host computer software displays and processes the monitoring data.The temperature and humidity sensors monitor air temperature and humidity.The capacitive soil moisture detection sensor monitors soil moisture.The carbon dioxide sensor monitors the concentration of carbon dioxide.The photosensitive sensor monitors light intensity.This design has low hardware cost and high data acquisition accuracy,which can be applied to the actual greenhouse agricultural production and has wide practicability. 展开更多
关键词 STM32F103 microcontroller Temperature and Humidity Sensor Photosensitive Sensor PC Software
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STM32-based Health Monitoring System for Infants and Toddlers
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作者 ZHUANG Jianjun DONG Jianing 《Instrumentation》 2023年第3期34-41,共8页
In order to allow the guardians to monitor the physiological parameters of the infant more intuitively and to be able to respond to sudden irregularities in the pulse rate,abnormal blood oxygen,high or low body temper... In order to allow the guardians to monitor the physiological parameters of the infant more intuitively and to be able to respond to sudden irregularities in the pulse rate,abnormal blood oxygen,high or low body temperature and other conditions,and to facilitate communication with the medical staff or to request assistance in treatment,an STM32 microcontroller-based infant health monitoring system is designed.The digital signal acquisition module for pulse,blood oxygen and body temperature acquire the raw data,and the microcontroller performs algorithmic processing to display the physiological parameters such as pulse,blood oxygen and body temperature of the infant,and configures the threshold alarms for the physiological parameters by means of a keypad module.Finally,the test results are compared and tested against the standard physiological parameters of infants and children to verify that the system meets the requirements of medical precision and accuracy. 展开更多
关键词 Infants and Children microcontrollers Health Monitoring systems Physiological Parameters
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基于ArchC进行嵌入式Microcontroller设计研究
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作者 杨荣 赵建勋 朱勇 《咸宁学院学报》 2008年第6期67-69,共3页
介绍了一种实用的以SystemC为基础的体系结构描述语言(ADL)—ArchC,首先简单对ArchC软件工具包进行了说明,接着重点介绍了以ArchC为工具进行Microcontroller设计的原理和简单流程,并说明了其关键技术,最后作了一个简单的总结.
关键词 systemC ArehC ADL microcontroller
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Intelligent Temperature Control System Design Based on Single-Chip Microcomputer 被引量:7
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作者 Jun Li Xian-Lin Meng Wen-Long Song 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2014年第3期91-94,共4页
A design method of an intelligent temperature control system based on single-chip microcomputer is presented in this paper. The intelligent temperature control system is divided into four parts: monitor,heater,control... A design method of an intelligent temperature control system based on single-chip microcomputer is presented in this paper. The intelligent temperature control system is divided into four parts: monitor,heater,controlled process and feedback loop. Among them,the temperature detection circuit is designed with the conductivity of water by sensor detection. The optical coupler MOC3041 is used to implement the power control circuit,whose control object is 1 kW electric heater with the 220 V alternating current power; keyboard and display circuit SMC1602A include four buttons and LCD display to achieve human-computer interaction; Based on single-chip system STC89C52,the sensor signal and keyboard set target temperature are compared to the power automatically in order to finish the water temperature control. Through the static and dynamic data testing,the results show that the proposed method provides an effective way to realize the real-time acquisition and control of temperature. 展开更多
关键词 microcontroller temperature sensors power control SCR
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Improved direct power injection model of 16-bit microcontroller for electromagnetic immunity prediction 被引量:3
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作者 高雪莲 田聪颖 +2 位作者 落丽媛 陈银红 陈彦宇 《Journal of Central South University》 SCIE EI CAS 2011年第6期2031-2035,共5页
To promote the modeling standardization process of the integrated circuits, an improved electrical simulation model for a direct power injection (DPI) setup which was used to measure the conducted immunity of a 16-b... To promote the modeling standardization process of the integrated circuits, an improved electrical simulation model for a direct power injection (DPI) setup which was used to measure the conducted immunity of a 16-bit microcontroller to radio frequency aggression was investigated. Based on the existing model of the same microcontroller, the PDN module was modified by adding the core, PLL and MD network models, which could reflect the actual electric distribution situation within the microcontroller more accurately. By comparing the simulation results with the measurement results, the effectiveness of the modified model can be improved to 500 MHz, and its uncertainty is within +1.8 dB (+2 dB is acceptable). Then, to improve the simulation accuracy of the complete model in the high frequency range, the I/O model which contained the dynamic and nonlinear characteristics reflecting the variation of the internal impedance of the microcontroller with increasing the frequency of the external noise was introduced. By comparing the simulation results with the measurement results, the effectiveness of the second modified model can be improved up to 1.4 GHz with the uncertainty of ~1.8 dB. Thus, a conclusion can be reached that the proposed model can be applied to a much wider frequency range with a smaller uncertainty than the latest model of the similar type. Furthermore, associated with the electromagnetic emission testing platform model, the PDN module can also be used to predict the electromagnetic conducted and radiated emission characteristics. This modeling method can also be applied to other integrated circuits, which is very helpful to the standardization of the IC electromagnetic compatibility (EMC) modeling process. 展开更多
关键词 electromagnetic immunity microcontroller direct power injection passive distribution network
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Design and development of a plastic scintillator based whole body β/γ contamination monitoring system 被引量:2
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作者 Vaishali M.Thakur Amit Jain +4 位作者 P.Ashokkumar Rekha Anilkumar Pravin Sawant Probal Chaudhury L.M.Chaudhari 《Nuclear Science and Techniques》 SCIE EI CAS CSCD 2021年第5期33-42,共10页
Plastic scintillation detectors based whole body β/γ contamination monitors are developed for use in radiation facilities.This microcontroller-based multi-detector system uses 13 plastic scintillator detectors,with ... Plastic scintillation detectors based whole body β/γ contamination monitors are developed for use in radiation facilities.This microcontroller-based multi-detector system uses 13 plastic scintillator detectors,with minimized dead detection zones,monitoring the whole body,and conforming to the contamination limit prescribed by the regulatory authority.This system has the features for monitoring hands,feet,head,and faceβ/γusing contamination monitors and portal exit monitors.It can detect gamma sources at a dose rate of 10 n Gyh^(-1).The system is calibrated using b sources^(90)Sr/^(90)Y,^(204)Tl,and^(36)Cl,and the efficiency is found to be 29%,22%,and 18%,respectively.Theminimumdetectableβ/γcontaminationis0.15 Bqcm^(-2),which is significantly less than the minimum detection objectives on head,face,hands,and feet. 展开更多
关键词 Plastic scintillation detector Contamination monitor microcontroller Minimum Detection Objective(MDO) Minimum Detection Concentration(MDC)
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Novel Design of HID Lamp Electronic Ballast for Automotive Systems 被引量:2
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作者 DU Ye-qiang WANG Jin-hai ZHENG Yu ZHANG Cheng 《Semiconductor Photonics and Technology》 CAS 2007年第4期276-279,共4页
This paper presents a high intensity discharge(HID) lamp for automotive illumination. A novel type of ballast for HID is proposed without an acoustic resonance. The system consists of high frequency DC/DC converter,... This paper presents a high intensity discharge(HID) lamp for automotive illumination. A novel type of ballast for HID is proposed without an acoustic resonance. The system consists of high frequency DC/DC converter,DC/AC inverter(SLA2403M), high voltage igniter and a microcontroller unit(MCU). The proposed ballast controls the complex start-up process and constant power process by programming on the rnicrocontroller. It is verified that experimental results agree well with the calculated ones. The ballast features such functions as failure protection, line under-voltage, line over-voltage, output short circuit and disconnection protections. 展开更多
关键词 HID lamp BALLAST microcontroller unit PWM
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Fire-Detectors Review and Design of an Automated, Quick Responsive Fire-Alarm System Based on SMS 被引量:2
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作者 Omar Asif Md. Belayat Hossain +2 位作者 Mamun Hasan Mir Toufikur Rahman Muhammad E. H. Chowdhury 《International Journal of Communications, Network and System Sciences》 2014年第9期386-395,共10页
In this work a review of existing fire-detector types has been carried out along with the development of a low cost, portable, and reliable microcontroller based automated fire alarm system for remotely alerting any f... In this work a review of existing fire-detector types has been carried out along with the development of a low cost, portable, and reliable microcontroller based automated fire alarm system for remotely alerting any fire incidents in household or industrial premises. The aim of the system designed is to alert the distant property-owner efficiently and quickly by sending short message (SMS) via GSM network. A Linear integrated temperature sensor detects temperature beyond preset value whereas semiconductor type sensor detects presence of smoke or gas from fire hazards. The sensor units are connected via common data line to ATMega8L AVR microcontroller. A SIM300CZ GSM kit based network module, capable of operating in standard GSM bands, has been used to send alert messages. The system is implemented on printed circuit board (PCB) and tested under different experimental conditions to evaluate its performances. 展开更多
关键词 Fire-Detector microcontroller FIRE ALARM Temperature Sensor SMS GSM Network
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A Universal Object Oriented Expert System Frame Work for Fault Diagnosis 被引量:2
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作者 Dattatraya Vishnu Kodavade Shaila Dinakar Apte 《International Journal of Intelligence Science》 2012年第3期63-70,共8页
The paper presents a universal fault diagnostic expert system frame work. The frame work is characterized by two basic features. The first includes a fault diagnostic strategy which utilizes the fault classification a... The paper presents a universal fault diagnostic expert system frame work. The frame work is characterized by two basic features. The first includes a fault diagnostic strategy which utilizes the fault classification and checks knowledge about unit under test. The degree of accuracy to which faults are located is improved by using fault classification knowledge. The second characteristic is object oriented inference mechanism using message passing. Object orientation in inference mechanism improved inference efficiency. The developed framework demonstrates its effectiveness and superiority compared to earlier approaches using case studies. 展开更多
关键词 Knowledge INFERENCE Object microcontroller HEURISTICS INHERITANCE
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The Features of Microcontroller EM78P447 and Technique of Port Connection with I^2C Series Bus 被引量:1
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作者 Huang Ji-wu Yang Hong-wei +2 位作者 Li Yang Shen Rui-hua You Zhi 《Wuhan University Journal of Natural Sciences》 CAS 2000年第4期461-463,共3页
By describing the technique of port connection and flow chart ofR/W operation between 24LC01, serial E2PROM, and EM78P447A, features of EM78P447 and its connection with I2C serial bus are introduced. In the end, the p... By describing the technique of port connection and flow chart ofR/W operation between 24LC01, serial E2PROM, and EM78P447A, features of EM78P447 and its connection with I2C serial bus are introduced. In the end, the programe of writing operation is given. 展开更多
关键词 EM78P447A microcontroller I2C series bus 24LC01 technique of port connection
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