Design One Kind of Simplified Smart Home Monitor and Controller Based on ARM-Linux System and Information Network to the Public

2012 ◽  
Vol 629 ◽  
pp. 845-847
Author(s):  
Zhan Feng Zhao ◽  
Yun Tao Zhang ◽  
Zhi Quan Zhou ◽  
Hai Yan Yu
Keyword(s):  
Smart Home ◽  
Low Cost ◽  
Text Messages ◽  
Fire Alarm ◽  
The Public ◽  
System A ◽  
Measuring Devices ◽  
Series Of Experiments ◽  
Home Monitor ◽  
And Control

A smart home structure using network (internet, intranet, wireless etc.) is designed and developed to monitor the circumstances and control the appliances in the house when sensors are triggered by some unexpected cases. A good host of low-cost sensors is used to make anti theft alarm, fire alarm, smog alarm etc. And then transmitted these data got from the measuring devices to neutral module. The neutral module is constructed by ARM-S3C6410 hardware and embedded Linux. It can transmit messages to the householders after processed. The householders can visit the web server to make it clear what happened in the house. Moreover, they can control some appliances to make incidences back to normal through the Internet. If the owners are holding mobile phones, the neutral module will transmit text messages to them. In turn, they can also control the appliances by sending some specific instructions. And then the neutral module will give some other messages as feedback. Additionally, visible interphone technology also makes function in this system. A LCD is organized in the neutral module, one person who stays in the house can make a good conversation with others through neutral platform. Finally, a series of experiments are posed to estimate the performance of our solution.

Self-organizing probability neural network-based intelligent non-intrusive load monitoring with applications to low-cost residential measuring devices

2020 ◽  
pp. 014233122095086
Author(s):  
Zejian Zhou ◽  
Yingmeng Xiang ◽  
Hao Xu ◽  
Yishen Wang ◽  
Di Shi ◽  
...  
Keyword(s):  
Neural Network ◽  
Probabilistic Neural Network ◽  
Low Cost ◽  
Back Propagation ◽  
Learning Technologies ◽  
Training Time ◽  
The Public ◽  
Measuring Devices ◽  
Load Monitoring ◽  
Self Organizing

Non-intrusive load monitoring (NILM) is a critical technique for advanced smart grid management due to the convenience of monitoring and analysing individual appliances’ power consumption in a non-intrusive fashion. Inspired by emerging machine learning technologies, many recent non-intrusive load monitoring studies have adopted artificial neural networks (ANN) to disaggregate appliances’ power from the non-intrusive sensors’ measurements. However, back-propagation ANNs have a very limit ability to disaggregate appliances caused by the great training time and uncertainty of convergence, which are critical flaws for low-cost devices. In this paper, a novel self-organizing probabilistic neural network (SPNN)-based non-intrusive load monitoring algorithm has been developed specifically for low-cost residential measuring devices. The proposed SPNN has been designed to estimate the probability density function classifying the different types of appliances. Compared to back-propagation ANNs, the SPNN requires less iterative synaptic weights update and provides guaranteed convergence. Meanwhile, the novel SPNN has less space complexity when compared with conventional PNNs by the self-organizing mechanism which automatically edits the neuron numbers. These advantages make the algorithm especially favourable to low-cost residential NILM devices. The effectiveness of the proposed algorithm is demonstrated through numerical simulation by using the public REDD dataset. Performance comparisons with well-known benchmark algorithms have also been provided in the experiment section.

Using a Hydraulically Balanced Beam System in Control Education

1997 ◽  
Vol 119 (4) ◽  
pp. 815-819 ◽  
Author(s):  
Pai-Hsueh Yang ◽  
Mark Lemkin ◽  
David M. Auslander
Keyword(s):  
Low Cost ◽  
Control Algorithms ◽  
Balance Beam ◽  
System A ◽  
Advanced Students ◽  
Ideal Tool ◽  
Control Education ◽  
And Control ◽  
Different Levels ◽  
Control Implementation

This paper discusses a low cost solution to teaching controls in the laboratory through the use of a novel balance beam. The balance beam provides a vehicle to study many aspects of both control implementation and control algorithms. Due to the complexity of the system, a full semester of laboratory exercises is provided for even advanced students. The flexibility of the system provides challenging exercises for different levels of education. A low overall cost translates to accessibility to more schools. The ability to achieve good tracking performance with a simple cascaded loop controller makes this an ideal tool for teaching controls in a laboratory setting.

scholarly journals Modeling and Control of a Micro AUV: Objects Follower Approach

Sensors ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 2574 ◽  
Author(s):  
Jesus Monroy-Anieva ◽  
Cyril Rouviere ◽  
Eduardo Campos-Mercado ◽  
Tomas Salgado-Jimenez ◽  
Luis Garcia-Valdovinos
Keyword(s):  
Autonomous Underwater Vehicle ◽  
Vision System ◽  
Low Cost ◽  
Closed Loop System ◽  
Depth Sensor ◽  
Modeling And Control ◽  
System A ◽  
Formal Stability ◽  
Proportional Derivative Controller ◽  
And Control

This work describes the modeling, control and development of a low cost Micro Autonomous Underwater Vehicle (μ-AUV), named AR2D2. The main objective of this work is to make the vehicle to detect and follow an object with defined color by means of the readings of a depth sensor and the information provided by an artificial vision system. A nonlinear PD (Proportional-Derivative) controller is implemented on the vehicle in order to stabilize the heave and surge movements. A formal stability proof of the closed-loop system using Lyapunov’s theory is given. Furthermore, the performance of the μ-AUV is validated through numerical simulations in MatLab and real-time experiments.

scholarly journals Power-Aware Synchronization of a Software Defined Clock

2019 ◽  
Vol 8 (1) ◽  
pp. 11 ◽  
Author(s):  
Augusto Ciuffoletti
Keyword(s):  
Formal Model ◽  
Optimal Algorithm ◽  
Clock Synchronization ◽  
Low Cost ◽  
Time Coordinate ◽  
Clock Drift ◽  
Common Time ◽  
System A ◽  
Hardware Clock ◽  
And Control

In a distributed system, a common time reference allows each component to associate the same timestamp to events that occur simultaneously. It is a design option with benefits and drawbacks since it simplifies and makes more efficient a number of functions, but requires additional resources and control to keep component clocks synchronized. In this paper, we quantify how much power is spent to implement such a function, which helps to solve the dilemma in a system of low-power sensors. To find widely applicable results, the formal model used in our investigation is agnostic of the communication pattern that components use to synchronize their clocks, and focuses on the scheduling of clock synchronization operations needed to correct clock drift. This model helps us to discover that the dynamic calibration of clock drift significantly reduces power consumption. We derive an optimal algorithm to keep a software defined clock (SDCk) synchronized with the reference, and we find that its effectiveness is strongly influenced by hardware clock quality. To demonstrate the soundness of formal statements, we introduce a proof of concept. For its implementation, we privilege low-cost components and standard protocols, and we use it to find that the power needed to keep a clock within 200 ms from UTC (Universal Time Coordinate) as on the order of 10−5 W . The prototype is fully documented and reproducible.

Design and Realization of Wireless LAN in Smart Home System Based on 433MHZ Communication

2013 ◽  
Vol 336-338 ◽  
pp. 1645-1649 ◽  
Author(s):  
Zhi Min Li ◽  
De Han Luo ◽  
Dan Jun Fan ◽  
Chao Wang
Keyword(s):  
Wireless Network ◽  
Wireless Lan ◽  
Smart Home ◽  
Low Cost ◽  
Data Communication ◽  
Wireless Communication Protocol ◽  
Flexible Integration ◽  
Software And Hardware ◽  
Wireless Module ◽  
And Control

Nowadays, wireless network technology in smart home is rapid gaining popularity duo to its flexible integration into everyday life. The paper introduces a method that adopts 433MHZ communication to establish the wireless network in smart home system based on Si4421 wireless modules. The paper designed the overall idea of how to establish the wireless network, it mainly talk about the wireless module, including both software and hardware. The difficulty lies in the realization of the custom wireless communication protocol. The Si4421 wireless module was tested in data communication and control in smart home system which can work efficiently and reliably, it proved that the wireless module is perfectly suitable for the wireless network construction in smart home with small size package, low consumption, low cost, and strong ability to leap obstacles.

Design of a Portable IPMC Actuator Tester

2013 ◽  
Vol 461 ◽  
pp. 347-351 ◽  
Author(s):  
Meng Zhang ◽  
Ming Yu ◽  
Qing Song He ◽  
Bao Lei Wang ◽  
Jie Ru ◽  
...  
Keyword(s):  
Control System ◽  
Low Voltage ◽  
Low Cost ◽  
Research Work ◽  
Testing System ◽  
Metal Composite ◽  
Main Research ◽  
System A ◽  
Polymer Metal ◽  
And Control

As a new intelligent material, IPMC (Ionic polymer-metal composite) can be driven under low voltage with large deformation, and has been widely used in biomedical and robotic systems. Traditional IPMC testing system is bulky, high cost, and inconvenient to use. In order to achieve the portability and convenience of the IPMC testing system, a small and low-cost IPMC tester was designed. The power supply and control system of the tester were integrated into an IPMC electrode clamp. The main research work included control system circuit design, electrode clamp and overall exterior design. The displacement measurement results showed that the design for the IPMC tester was correct and feasible.

Innovative control education using a low cost intelligent robot platform

Robotica ◽  
2003 ◽  
Vol 21 (3) ◽  
pp. 283-288 ◽  
Author(s):  
Wei Wang ◽  
Yan Zhuang ◽  
Wei-min Yun
Keyword(s):  
Intelligent Systems ◽  
Low Cost ◽  
Cost Effective ◽  
Technical Aspect ◽  
Intelligent Robot ◽  
Fast Development ◽  
Series Of Experiments ◽  
Control Education ◽  
And Control ◽  
Robot Platform

With the fast development of the control theory and engineering, robotics and artificial intelligence have become the focus in the field of intelligent systems. But research in this field is based on a series of experiments and requires various robot platforms which are often unaffordable by the universities in developing countries. The intention of this paper is to present the idea of applying innovative control education and building a laboratory using low cost equipments. In this paper the architecture and control system of a new kind of low cost intelligent robot, “Ability Storm”, is introduced. It not only shows the technical aspect, but also illustrates the related applications in control education. The versatility and effectiveness of this affordable intelligent robot platform are demonstrated through a number of experiments, including both basic laboratory experiments and other innovative project-oriented design, such as robot fire fighting, which clearly show the practicality and robustness of this cost-effective robot platform.

Measurement and Comparison of Force Effort During Friction Stir Welding in a Parallel Kinematic 5-Axis Milling Machine

2012 ◽  
Author(s):  
Arun Prasath Manogaran ◽  
Guillaume Racineux ◽  
Jean-Yves Hascoet
Keyword(s):  
Friction Stir Welding ◽  
Low Cost ◽  
Milling Machine ◽  
Friction Stir ◽  
Advantages And Disadvantages ◽  
Measuring Devices ◽  
Wide Range ◽  
Dynamic Measuring ◽  
And Control

Friction stir welding (FSW) is so quite promising that leads it to one of the preferred joining process for a wide range of applications especially for Aluminum. FSW machines are very expensive. The objective is to develop a simple and low cost technique to measure and control the force during FSW in a milling machine. Measurement of forces during welding is a difficult task. Many dynamic measuring devices such as dynamometers are available but each have their own advantages and disadvantages. A new approach to measure force while performing weld is discussed. First, incorporation of FSW in PKM 5-axes milling machine is done. The head of the machine is modified to support higher force levels that are generated during FSW. With the help of the NC-Controller, the force values are retrieved from the axes of the machine while performing weld through actuators. Forces were also measured from load cell and compared to estimate the quality of measurement.

Design and Implementation of Embedded Wireless Smart Gateway Based on PXA270

2012 ◽  
Vol 463-464 ◽  
pp. 1327-1331
Author(s):  
Hong Yan Kang
Keyword(s):  
Embedded System ◽  
Smart Home ◽  
High Reliability ◽  
Low Cost ◽  
Implementation Process ◽  
Communication Technologies ◽  
Long Distance ◽  
System A ◽  
Internal Network ◽  
Distance Communication

To release the connection problem between two different wireless communication technologies in conventional smart home system, a new embedded wireless smart based on PXA270, Zigbee and GPRS was designed. Web server was built on embedded system which uses PXA270 as core, and the exchange of information between internal network and the Internet via Zigbee module and GPRS module. ZigBee network mainly for short-distance communication and the GPRS network mainly for long-distance communications, so they can on the basis of complementary advantages to achieve a long-distance data transmission linked together by gateway. This paper presents the hardware architecture and the software implementation process. The experimental results show that this system has advantages of high reliability and low cost, so it can be applied to environmental monitoring and the smart home system

scholarly journals Feasibility and acceptability of text messaging to support antenatal healthcare in Iraqi pregnant women: a pilot study

2018 ◽  
Vol 46 (1) ◽  
pp. 67-74 ◽  
Author(s):  
Taghreed Alhaidari ◽  
Nazar Amso ◽  
Taqi Mohammed Jawad ◽  
Ulfat Alnakkash ◽  
Faris Khazaal ◽  
...  
Keyword(s):  
Pregnant Women ◽  
Text Messaging ◽  
Statistical Tests ◽  
Low Cost ◽  
Antenatal Clinic ◽  
Median Number ◽  
Text Messages ◽  
Primary Health Care Centers ◽  
And Control ◽  
Health Care Centers

AbstractObjective:To determine the feasibility and acceptability of mobile health technology and its potential to improve antenatal care (ANC) services in Iraq.Methods:This was a controlled experimental study conducted at primary health care centers. One hundred pregnant women who attended those centres for ANC were exposed to weekly text messages varying in content, depending on the week of gestation, while 150 women were recruited for the unexposed group. The number of ANC visits in the intervention and control groups, was the main outcome measure. The Mann-Whitney test and the Poisson regression model were the two main statistical tests used.Results:More than 85% of recipients were in agreement with the following statements: “the client recommends this program for other pregnant women”, “personal rating for the message as a whole” and “obtained benefit from the messages”. There was a statistically significant increase in the median number of antenatal clinic visits from two to four per pregnancy, in addition to being relatively of low cost, and could be provided for a larger population with not much difference in the efforts.Conclusions:Text messaging is feasible, low cost and reasonably acceptable to Iraqi pregnant women, and encourages their ANC visits.

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