Serial Port Research Articles

GSM Based Automatic Electricity Billing System

In this project an automatic meter reading system is designed using GSM Technology. The embedded micro controller is interfaced with the GSM Module. This setup is fitted in home. The energy meter is attached to the micro controller. This controller reads the data from the meter output and transfers that data to GSM Module through the serial port. The embedded micro controller has the knowledge of sending message to the system through the GSM module. Another system is placed in EB office, which is the authority office. When they send “unit request” to the microcontroller which is placed in home. Then the unit value is sent to the EB office PC through GSM module. According to the readings, the authority officer will send the information about the bill to the customer. If the customer doesn’t pay bill on-time, the power supply to the corresponding home power unit is cut, by sending the command through to the microcontroller. Once the payment of bill is done the power supply is given to the customer. Power management concept is introduced, in which during the restriction mode only limited amount of power supply can be used by the customer.

The video intelligent car based on wireless sensor

This paper mainly covers the wireless video intelligent car made of hardware and the design of software programming. It uses the idea of modularization in the design of hardware, STC12C5A60S2 single-chip microcomputer as the master control chip, and STC89C52RC MCU as the auxiliary control chip. The peripheral circuit modules include Wi-Fi camera monitoring HC-06 module, serial communication module, Bluetooth GPS positioning module, LCD12864 module, DC deceleration motor and L298N driver module, voice BY8301-16 p playback module, TTP223 touch sensor module, the infrared sensor of obstacle avoidance module, active buzzer alarm module, lighting module, power supply circuit, reset circuit, etc. Software is designed with the Keil-Vision5 write master program and the auxiliary control chip. Bluetooth intellectual control App on the Android mobile phone is adopted to write PC serial port to send data to the PC installation SYSM—Monitor monitoring software view and to check the state of the smart car and then the data is displayed on the screen through LCD12864. Wireless video intelligent car adopts modular design, and each modules are independent, but they also connected with each other. Operator can select button on Android phones (forward, backward, turn left, turn right, music playback, far and near light, anti-theft alarm and other key) to control the smart car, smart car Wi-Fi camera, and at the same time, feeds back its status and data on the LCD12864 LCD screen (time, longitude, latitude, altitude) transmitted to a PC SYSM—monitoring software of the Monitor screen, which is convenient for operating personnel to acquire visual images and control the smart car. In addition, the intelligent car also bears the anti-theft alarm function. The smart car buzzer will alarm as a response of the operator’s touch, if the operator has lifted the permission of the police.

DEVELOPMENT OF A3-AXIS CNC MILLING MACHINE WITH AN OPEN SOURCE CONTROLLER

This report presents one of the application performed by Arduino Uno when sandwiched with Grbl shield which is a high performance open source CNC controller written in optimized C-language. Here in this paper a file with extension .jpeg or .png, or .pdf is imported in an open source Aspire software which converts it into .txt or .prt file. Vectors of the imported file is traced accordingly, followed by modelling and manufacturing procedures. Once the simulation of the manufacturing file is visualized in Aspire software then G-code file is generated using post processing operation, this G-code file is saved with .txt extension. The G-code file is then browsed in Universal G-code sender software coupled to Grbl shield v0.9j and Arduino board through a laptop serial port, G-code visualizer option is available on Universal G-code sender software to visualize the manufacturing steps along with the simulation. In this way proprietory control of a controller is eliminated, and CNC machine is made user friendly.

Distributed real‐time monitoring system for atmospheric particles

Haze occurs frequently in many cities, and becomes the authors' great common concern. A distributed real-time monitoring system for atmospheric particles has been designed, implemented and tested. The proposed system consists of a front-end data wireless acquisition network, an embedded web server system, a central server and remote monitoring terminals. The front-end data-acquisition network is made up of mobile data-acquisition nodes distributed in atmospheric particle monitoring areas which collect atmospheric particle data periodically. The data is transmitted by Jennet wireless network and sent to the Internet through the embedded web servers attached to the coordinator nodes via the serial ports. Only a common Internet browser is required for a remote user to check the atmospheric particle data. The central server is responsible for storing the pollution data for further usage of pollution analysis, evaluation and early warning. In this study, the PM1.0, PM2.5 and PM10 particle data were successfully collected, transmitted and checked by the monitoring system in Lanzhou, China. The results show that the designed system can meet the needs of functional requirements of atmospheric particle monitoring.

Universal Data Logger System for Environmental Monitoring Applications

Collecting huge amount of data in long time acquisition systems like in environmental monitoring, there is a need to collect and save data over time for further use or analysis. A data logger is an electronic device that records data over time or in a relation to location either with a built-in instrument, sensor or via an external instruments and sensor. In this paper, a data logger system is designed to use as a stand-alone or computer based device. When used as a standalone system, all data acquired are saved in SD memory card, which must be copied and erased periodically depending on the memory size. When used as computer based device, all the data sent to the computer via the serial port and stored automatically in achieved files. The limit of those files size only restricted by the capacity of the disk. The data logger is designed using an Arduino UNO board and LabView software, and it has the flexibility to set it up for different user options. With this system, the user could be able to record and read back sensory data to or from existing files, or in automatically generated files and plot these readings in a graph. Also, the user have the ability to choose the periodic time at which a sample record in a file in term of seconds, minutes or hours. The system designed to monitor and record a single channel data, but it could be adapted to monitor more than one channel.

Universal Data Logger System for Environmental Monitoring Applications

Collecting huge amount of data in long time acquisition systems like in environmental monitoring, there is a need to collect and save data over time for further use or analysis. A data logger is an electronic device that records data over time or in a relation to location either with a built-in instrument, sensor or via an external instruments and sensor. In this paper, a data logger system is designed to use as a stand-alone or computer based device. When used as a standalone system, all data acquired are saved in SD memory card, which must be copied and erased periodically depending on the memory size. When used as computer based device, all the data sent to the computer via the serial port and stored automatically in achieved files. The limit of those files size only restricted by the capacity of the disk. The data logger is designed using an Arduino UNO board and LabView software, and it has the flexibility to set it up for different user options. With this system, the user could be able to record and read back sensory data to or from existing files, or in automatically generated files and plot these readings in a graph. Also, the user have the ability to choose the periodic time at which a sample record in a file in term of seconds, minutes or hours. The system designed to monitor and record a single channel data, but it could be adapted to monitor more than one channel.

IMPLEMENTASI MIKROKONTROLER SINGLE MASTER-MULTI SLAVE UNTUK PENGIRIMAN DAN PENERIMAAN DATA PADA PROTOTIPE STASIUN CUACA

We have carried out the microcontroller research implementation as a Master to control multiple Slaves microcontroller on weather station prototype. Master Microcontroller could be interconnected with four Slaves microcontrollers Slaves, in which each has a different type of input. In this research, we used an ATmega8535 microcontroller. To distinguish between a Slave microcontroller and another Slave microcontroller, an addressing system (ID) is used. Data communication used a standard serial port RS-232 and RS-485 ports, the connector is used to connect the two ports. The Single Board Controller (SBC) Master serves user commands from users, sending the commands and processing Slaves. User commands are given via the keypad and then transmitted using a Universal Asynchronous Receiver-Transmitter (USART) to SBC Slaves. The process on the SBC Slaves is waiting for orders from the Master. The order is detected using an interrupt. After that, the commands are processed and the respond is sent to the SBC Master via USART. When there is no command, Slaves do the idle process. The result shows that the microcontroller application single Master - multiple Slaves has functioned for sending and receiving data in accordance with the specified command. This is shown by the output on a display that has shown the result as expected. The power consumption of each SBC is relatively small which is 0,745 Watt. Thus, it makes the system more economically profitable.

Application and Design of Patient Temperature Acquisition System Based on Wireless Sensor Network

The purpose of this study is to achieve large-scale real-time acquisition and monitoring of the patient’s body temperature, for noticing abnormal phenomenon of temperature in time. In the ward, arrange ZigBee wireless temperature monitoring network, realize the ward patients temperature measurement and gathering of temperature related clinical data, achieve the temperature monitoring network through the serial RS232 and PC communication, and PC receives, displays, and processes the data through the serial port. The results showed that the system can also realize the acquisition, transmission and monitoring of a plurality of temperature signals, and send out the alarm in abnormal temperature. As a result, the system can be widely used in clinical measurement, suitable for popularization in large hospital with a large number of patients

Development and realization of embedded car networking vehicle terminal software system

As China’s economy develops vigorously, people’s living quality has been greatly improved and its car ownership has been increasing day by day. Consequently, traffic jams and safety problems become more and more severe. To solve these problems, the idea of car networking system construction has been put forward based on the improvement of Internet of Things and computer technologies. However, the vehicle terminals produced by many automobile manufacturers has disadvantages, such as incomplete functions, incompatible interface and exorbitant costs, etc. Therefore, based on the concept of car networking as well as the new 4G network technique, this study designed a kind of embedded car networking vehicle terminal and analyzed its hardware structure and installation problems. Moreover, its function of boot load program was extended and a software development platform of the embedded vehicle terminal based on Linux core was constructed. On the basis of the software and hardware environment construction, the global position system (GPS) and ZigBee wireless transmission software of the vehicle terminal were designed. In addition, the realization of the function of serial port communication was elaborated, and the development and realization of the embedded car networking vehicle terminal software system were explored.

The Application of UART Expansion Based on MSP430 Timer

By analyzing the principle and technology of MSP430, the characteristics and working mode of UART timer are studied, and the function of UART is realized by using MSP430 timer resource. Experiments show that the performance is stable and the bit error rate is expected to be stable. In the case of not increasing the number of peripheral, the expansion of the number of serial port provides a new way of thinking for serial communication.

PLC and Arduino Interaction Based on Modbus Protocol

This Paper introduces the design and communication method between PLC (Programmable Logic Controller) and Arduino based on MODBUS Protocol. MODBUS connection can be established in a new or existing system very easily, therefore we used this protocol in our proposed system. In the field of automatic devices, multi-function serial port such as RS232, RS422, RS485, and so on creates a great convenience to the developer. This proposed system used RS485 as a key mediator for data exchanging on a connected network. We also believe that it will reduce the development cost in various automated industry because this system can be reused or can be implemented any such PLC installed machines. RS485 is used as a communication interface between PLC (as a slave) and Arduino (as a master), through which a reliable network is created for safe and fast communication. Furthermore, RS485 allows multiple devices(up to 32) to communicate at half duplex on a single pair of wires and provides a long connectivity area (up to 1200 meters) as compare to other device, which makes it a user-friendly for various devices in the automated industry. Moreover, Arduino can play as a mediator by connecting third party device and setup a communication network with PLC.

Designing of Lighting Automation System Based on Arduino Bluetooth Interface using Android Smartphone as Platform

Bluetooth is now mainstream that it has become synonymous with the 21st century. The wireless technology allows exchanging data over short distance using short wavelength radio transmission, providing convenience, intelligence and controllability. In this paper, a home lighting control system using arduino bluetooth interface with android smartphone as platform is proposed and prototyped. Technology in arduino, android smartphone and bluetooth are reviewed. HC-05 bluetooth SPP (Serial Port Protocol) module, designed for transparent wireless serial connection setup is being used in the design. Android application is downloaded to android smartphone to monitor and control the operation of the lighting system remotely. The application facilitates in controlling the operating pins of Arduino. Design shows that arduino bluetooth interfacing can control a house lighting using an android smartphone as a platform. In future lighting home automation, timer will be included to be more energy- efficient and highly scalable. For secured, ubiquitously accessible and remotely controlled lighting system, GSM module will be incorporated in future designs. It would be extended to the large-scale environment such as colleges, offices and factories, among others.

Remote Monitoring System Design and Implementation for Impressed Current Cathodic Protection

Impressed current cathodic protection technology (ICCP) is one of the effective methods for corrosion protection of ships, bridges. This paper illustrates a remote monitoring system design and implementation for impressed current cathodic protection based on the existed ship monitoring systems. Interactive control panel is added in the existed ICCP system. Taking ARM9 S3C2440 chip as the core, Devine LCP2138 type color touch screen uses the serial port to communicate with the host computer using Modbus remote terminal protocol. LCP2138 establish communication with the RS485 interface, to achieve real-time data backup, and provides a query for users and technical support. Finally, the system test results show that the system realizes the ICCP remote control monitoring. The monitoring data is accurate and system operation is reliable.

Arduino-controlled HP memristor emulator for memristor circuit applications

In this paper, we present a memristor emulator made up of a digital potentiometer (DigPot) and a micro-controller (Arduino). The mathematical equations which govern the HP memristor model are programmed onto the Arduino which in turn communicates with the digital potentiometer through the Serial Peripheral Interface (SPI) ports updating it based on the implemented equations. The Arduino samples the voltage difference between the two terminals of the potentiometer's resistance network, then calculates the resistance using the implemented mathematical equations of the memristor and then updates the potentiometer through the SPI interface. Data is collected through the serial port and plotted in real time on a serial monitor on a computer. This hobbyist-style do-it-yourself approach which has been made simple and easily replicable can be used to initiate students into the basic theory of memristors. The emulator composed of off-the-shelf electronic components come in handy at a time where reliable physical devices are yet available for testing.

The Design and Implementation of the HIRFL- Cryopump Temperature Monitoring System

This paper mainly presents a HIRFL-Cryopump temperature monitoring system by describing the architecture of the whole hardware system and the designing of its software system. We use a self-designed protocol converter as a bridge to connect to a vacuum device. This converter can convert serial port signals to network signals which we need in the central control room. The software part is created in ForceControl configuration platform, so the driver development is one of the most important jobs in the software design process. The driver codes are debugged and passed in Visual C++. Through two years running, it shows that the driver is correct and efficient. Overall, we believe that this system provides a cost-effective monitoring service with acceptable user experience.

Design and Realization of the Power Monitoring Network Based on Multifunctional Control Technology

The basic principle of serial port communication between single chip and computer is summarized, this paper describes a power monitoring system which is the real-time acquisition of voltage and current to the power supply system can be done using a single-chip micro-processor. It collects electric voltage, electric current data of power supply system by using single slice of machine. The collected data can be transferred to the upper-bit host controller for monitoring the power system. In practical power application, the system gains good effect.

Design of LDPC Decoder Based On FPGA in Digital Image Watermarking Technology

LDPC code and digital image watermarking technology, which is an effective method of digital copyright protection and information security, has been widely used. But this is a multi-disciplinary, multi technology application scheme. In order to realize FPGA design of LDPC decoder in the application scheme, an effective implementation method of digital watermarking application system must be found. In this paper, MATLAB software and Qt development environment are combined to achieve the digital watermarking application software design. It could get real-time input data for the LDPC decoder. Then the hardware of the LDPC decoder is primarily implemented by FPGA in the digital image watermarking system. And the serial port is used to make the output data of the decoder back to computer for verification. Through the simulation results, the Modelsim time simulation diagram is given, and the watermark image compared with the original image is got. The results show that the resource usage of our system is few, and the decoding rate is fast. It has a certain practical value.

Visual Processing and Classification of items on Moving Conveyor with Pick and Place Robot using PLC

Many industrial applications require some sort of automated visual processing and classification of items placed on moving conveyor. This paper describes the design and implementation of a robot control system on a hardware platform based on a programmable logic controllers (PLC). The controlled vision based robot is designed for high-performance pick and place applications in packaging work cell. The system includes a pick and place robot whereby a vision system is integrated in its workspace to identify work pieces with respect to their shape and color. A personal computer, operating under the windows platform, carries out all vision related processing and motion planning for the robot. Relevant motion information is communicated through the serial port of the computer to programmable logic controller (PLC), which interfaces with the sensing and actuation devices for robot control. The controlling center of this robot is PLC 7035. After sensing and recognizing the objects features, MATLAB sends results to PLC. PLC sends related orders to robot’s joints, which are made of DC and stepper motors. The robot picks the object, locates it in its respective destination, and turns back to its reference location. The validity of the developed robot is verified through experimental results.

Customization of a patient simulator for ECMO training

Background: Poland is setting up its first regional ECMO program and relies heavily on the use of simulation in testing processes and training clinicians.1 As ECMO is a complex and expensive procedure, we developed an advanced ECMO simulator for high-fidelity medical simulation training.2–6 It can be used to modify any type of full-body patient simulator and allows for the creation of an unlimited number of scenarios. Methods: The system is equipped with an electronic core control unit (CCU) (Figure 1), a set of synthetic valves, pressure sensors, and hydraulic pumps. The major functions of the CCU are to stabilize the hydraulic system (flow of simulated blood, differential pressures in the arterial and venous lines), providing instant information about the system to the user via a display. Electric valves and sensors provide ‘on-the-fly’ information to the CCU about the actual system's status and it can be made to respond to specific instructions imitating the physiological circulatory system and simulating several scenarios (i.e. bleeding, low pressure, occlusion, reaction to proper and incorrect pharmacological treatment). It can be connected to an ECMO machine to act like the human body during ECMO run. Silicone tubes (modified polyethylene) that can be realistically cannulated using ultrasound imaging represent the artificial vessels. The CCU is made of electronic components that can be integrated to customize any mannequin as shown in Figure 1. The hardware includes both digital and analogue components that are controlled by a software run on a computer connected to the CCU via a serial port (RS232) (Figure 2). The software allows for the visualization of measurements obtained from the sensors and the control of the pumps and valves via electronic controllers. The controllers affect the ECMO circuit simulated blood flow, and hence the readings from the ECMO machine sensors, to recreate various clinical scenarios.Figure 1. The modified patient simulator with circulatory loop prepared for VA ECMO cannulation and CCU (core control unit) for high-fidelity simulations. Figure 2. The ECMO simulator architecture. Results: Every component used can be easily replaced. The total cost of the simulator modification, excluding the cost of the computer or future mobile device, is approximately 200 USD, and the consumable parts cost about 20 USD. It has been used to help simulate successfully a range of scenarios.1 Although the system is currently tethered, the next prototype will include a wireless controller so that the system can be controlled from a mobile application. Conclusions: This advanced simulator allows for unlimited possibilities with regard to creating clinical scenarios. Our ambition is to become a reference ECMO training center in Poland so that our high-fidelity ECMO simulator can be used to its full potential and for the benefit of more clinicians and their patients around Poland.

Virtualization of Legacy Instrumentation Control Computers for Improved Reliability, Operational Life, and Management.

Laboratories tend to be amenable environments for long-term reliable operation of scientific measurement equipment. Indeed, it is not uncommon to find equipment 5, 10, or even 20+ years old still being routinely used in labs. Unfortunately, the Achilles heel for many of these devices is the control/data acquisition computer. Often these computers run older operating systems (e.g., Windows XP) and, while they might only use standard network, USB or serial ports, they require proprietary software to be installed. Even if the original installation disks can be found, it is a burdensome process to reinstall and is fraught with "gotchas" that can derail the process-lost license keys, incompatible hardware, forgotten configuration settings, etc. If you have running legacy instrumentation, the computer is the ticking time bomb waiting to put a halt to your operation.In this chapter, I describe how to virtualize your currently running control computer. This virtualized computer "image" is easy to maintain, easy to back up and easy to redeploy. I have used this multiple times in my own lab to greatly improve the robustness of my legacy devices.After completing the steps in this chapter, you will have your original control computer as well as a virtual instance of that computer with all the software installed ready to control your hardware should your original computer ever be decommissioned.