A Remote Calibration Device Using Edge Intelligence

Power system facility calibration is a compulsory task that requires in-site operations. In this work, we propose a remote calibration device that incorporates edge intelligence so that the required calibration can be accomplished with little human intervention. Our device entails a wireless serial port module, a Bluetooth module, a video acquisition module, a text recognition module, and a message transmission module. First, the wireless serial port is used to communicate with edge node, the Bluetooth is used to search for nearby Bluetooth devices to obtain their state information and the video is used to monitor the calibration process in the calibration lab. Second, to improve the intelligence, we propose a smart meter reading method in our device that is based on artificial intelligence to obtain information about calibration meters. We use a mini camera to capture images of calibration meters, then we adopt the Efficient and Accurate Scene Text Detector (EAST) to complete text detection, finally we built the Convolutional Recurrent Neural Network (CRNN) to complete the recognition of the meter data. Finally, the message transmission module is used to transmit the recognized data to the database through Extensible Messaging and Presence Protocol (XMPP). Our device solves the problem that some calibration meters cannot return information, thereby improving the remote calibration intelligence.

Indoor temperature, humidity and illumination control system based on Android

The temperature, humidity and illumination control system designed in this paper is based on Android platform. It is controlled by connecting the mobile phone wifi with the single chip microcomputer, and uploaded to the mobile phone client through wifi serial port technology. Users can collect indoor temperature and humidity data and illumination data through sensors. Through the mobile phone client to control the LED lights and relay switches of household appliances, such as the control of air conditioning, and finally achieve the goal of adjusting indoor lighting and controlling the on-off of household appliances.

Experience of Using EasyEDA to Develop Training Boards on the PIC16f887 Microcontroller

A brief overview of computer-aided design (CAD) systems widely used in Russia is presented, and the main requirements for tracing PCB boards are given. The main features of the actively developing cloud CAD system EasyEDA are shown, and the expediency of its use is justified. The idea of creating low-cost electronic training boards based on the PIC16F887 microcontroller for studying the basics of microprocessor technology is presented. Electronic training boards demonstrate all the capabilities of the microcontroller – the operation of the I/O ports, serial port, analog-to-digital converter( ADC), with a two-line liquid crystal display (LCD), with temperature sensors, with a DC motor, with a stepper motor, etc. The experience of developing a budget electronic training boards based on a PIC microcontroller in EasyEDA, which can be used to study the programming of microcontrollers, is shown. Shown are the possibilities of using the jlcpcb.com service to order PCB boards in the largest PCB prototyping enterprise in China, called JLCPCB.

SMS Based Exam Schedule Information Unit Link Using Data Protocol Method

SMS from these various considerations is feasible to use. The level of ownership of cellular phones and affordable costs are considerations that support the adoption of this technology to be widely applied for the application of information system development in the present and in the future.Distance and long time are no longer a problem that can hinder obtaining information about the exam schedule, the SMS received does not come directly from the sender, but comes from the SMS Center. So, before the SMS reaches the recipient, the SMS actually enters the SMS Center first,The PDU contains not only the message, but also a lot of information about the sender. Starting from the sender's number, the sender's SMSC number, the validity time of the SMS, and so on. Everything is built in the form of hexadecimal numbers. SMS-based student exam scheduling using AT Command GSM which is used as a command in communication with the serial port. Scheduling with the AT command technique is very effective as information for students.

AutoCell Systematic Evolution of Ligands by Exponential Enrichment: The Software Designed and Developed for the Automated Screening System of Nucleic Acid Aptamers

Aptamers are a new kind of nano-probes for bioassays and drug delivery, etc. In this paper, software has been developed as an automatic control center for the automated aptamer selecting system which realized the high integration of aptamer selection, data acquisition and processing. This software, applied in windows system, is developed by C# with the Microsoft Visual Studio 2015 integrated developing environment and the database used in this software is implemented using open source relational database MYSQL. According to the requirement analysis, this software realized various important necessary functions including feasible experiment design, auto-control of the hardware, real time process monitoring and efficient data management which perfectly satisfies the users’ demands. During the actual experiment operation, this software worked smoothly and assumed stable serial port communication between it and the hardware, meanwhile, the interaction between the software and MYSQL remained good stability. As a consequence, it is practical and reasonable to apply this software to the automated aptamer selecting system for research.

Aplikasi RFID untuk pembelajaran bagi anak-anak menggunakan PC

Pada tugas akhir ini, akan dikembangkan sebuah aplikasi RFID untuk pembelajaran bagi anak-anak menggunakan PC,RFID pada umumnya digunakan untuk mengidentifikasikan suatu benda, pada tugas akhir ini, RFID digunakan untukmenampilkan suatu pertanyaan dan menjawab suatu soal yang akan ditampilkan oleh PC, pada PC dibuat sebuah informasitentang objek-objek yang terdapat didalamnya yang dapat disimpan dan diambil sebagai informasi.Pada perancangannya sistem ini menggunakan RFID reader dan RFID tag sebagai inputan dari interaksi yang telahdilakukan oleh pengguna, sedangkan pada objeknya masing-masing akan diidentifikasi berdasarkan tag RFID, yangselanjutnya akan di lakukan proses mediasi ke dalam PC, dan akan menjadi sebuah aplikasi belajar bagi anak-anak. Olehkarena itu dilakukan penghubungan antara sistem RFID dan PC menggunakan kabel serial, sehingga data dari tag tersebutdapat diterima oleh program aplikasi pembelajaran, pada program aplikasi tersebut dibuat dengan menggunakan Ms. VisualBasic yang didalamnya terdapat komponen MSComm yang berfungsi untuk melewati data yang menggunakan serial port,sehingga sistem RFID dapat diterapkan sebagai metode pembelajaran bagi anak-anak.

Rancang Bangun Sistem Presensi Dosen dan Mahasiswa Dengan Radio Frequency Identification (RFID) Berbasis Raspberry PI

Pemanfaatan RFID saat ini sangat bermanfaat terutama dalam bidang pendidikan. RFID dapat digunakan dalam dunia Pendidikan yaitu dalam proses presensi belajar mengajar. Beberapa perguruan tinggi menggunakan RFID sebagai presensi untuk kehadiran dosen dan mahasiswa secara bersamaan sebagai syarat terselenggaranya proses belajar mengajar dan terbukti efektif dan efisien. Namun demikian teknologi yang dipergunakan masih menggunakan serial port dengan protocol RS485 multidrop sebagai komunikasi antara client dan servernya. Dalam journal ini dikembangkan dengan metode presensi yang sama namun dengan teknologi komunikasi yang berbeda yaitu menggunakan raspberry pi sebagai client agar dapat berkomunikasi menggunakan protocol TCP/IP yang sangat dan efisien serta berbiaya rendah,

Alternative Setup for Long-Duration Low-Duty-Cycle 600°C Ambient Testing of SiC Integrated Circuits

A scalable, compact oven testbed system for simultaneously evaluating a multitude of high temperature integrated circuits (ICs) for prolonged operating times of up to 600 °C has been prototyped. The new testbed system enables long-duration high temperature testing in sufficient statistical quantities consistent with standard aerospace electronics engineering standards. This setup is comprised of multiple compact ovens housing chips or packages mounted to ceramic circuit boards. Each oven is a compact 15.2 cm length by 15.2 cm width by 12.7 cm depth with a maximum 400 Watts of heating power. The custom-made silicon oxide ceramic heating block inside each oven is based on a 3D printed design adapted for the easy insertion of the IC device under test (DUT). This innovative design provides the quick insertion of ICs with or without a ceramic package into a 600 °C environment by utilizing a movable 11.43 cm long ceramic substrate with electrical traces extending from the oven hot zone to external standard plastic-based board connectors. Another key oven design feature is the minimization of the DUT exposure to electromagnetic interference (EMI) by utilizing a filtered DC power source to reduce heating element noise. Additionally, the ovens can be configured in a parallel arrangement allowing global data monitoring over a single industrial RS422 serial port. This feature is important for scaling up to test multiple ICs semi-simultaneously. A USB serial port is provided to independently control the operating parameters of each oven such as the oven target temperature and oven ramp rate. The oven temperature can reach up to 600 °C with a confirmed +/− 4 °C maximum deviation across the test zone region. The ramp rate can be programmed from 1 °C/minute up to 10 °C/minute. Furthermore, a programmable switchboard is used to interface with the DUT. This switchboard comprises a National Instruments Peripheral Component Interconnect eXtension for Instrumentation (NI PXI) system and a breakout board to send and receive power, analog or digital test signals. By using this unique oven testbed system, a variety of ICs can now be tested in parallel using the same test components configured for a diverse set of requirements.