Embedded Control Technology Research Articles

Design of new-style embedded acupoint recognition device

A new type of embedded acupoint recognition device was developed for acupoint recognition and teaching. Through improving the acupoint electric resistance detection technique of the two-electrode method, combined with mechanical structure design and embedded control technology, the human acupoint database was assembled in the embedded chip with the international symbol, acupoint name, pinyin, location, chart, manuscript and audio information included, a new type of embedded acupoint recognition device was designed. The device was composed of 3 modules, named the acupoint electric resistance detection system, the embedded control system and mechanical system. It achieved skin contact sensation, the collection of electric resistance at the required skin region, the wireless communication, the liquid crystal display (LCD) human-computer interaction and acupoint magnetic head massage. When used, the resistance value of the detected skin is read on LCD to determine whether the detected skin resistance meets the features of low resistance of acupoint and further to identify the acupoint zone. Afterward, the data collected are matched with the human acupoint database to determine the information of acupoint. The control mechanical structure achieves the acupoint pressing and kneading. After verified by many operation staff, it is shown that the device not only improves the recognition speed and precision of acupoint, but also contributes to the acupoint teaching with the human acupoint database displayed on LCD. The achievements benefit the promotion of meridians and acupoints as well as the development of acupuncture devices.

LIGHT REMOTE CONTROL THROUGH MULTI-CHANNEL BY CLOUD PLATFORM BASED ON NETWORK

This paper analyses the present situation of the development of networking and smart home Rapid development of the Internet and smart home. Because these technologies are making people's lives more convenient, so loved by people. Using the embedded control technology, by means of infrared technology and WiFi networks, set up a remote to control the lighting system. Using this system, users can use the smart device to control the lighting. You can also view the current lighting condition. Greatly enriches the way lights are used.

Embedded Systems: Teaching and Design Challenges for Nonhomogeneous Classes

The growth of technology leads the industry to move beyond and crosses the boundaries of its own disciplines. The changes from pure mechanical system, to electronics systems and the integration with control software brings new challenges to the engineers working in the industry and to the source shaped the engineers. As a result, institutes of higher education need to make the necessary changes to meet this continuing market demands. This work address the issue and describes a new systematic and an effective approach for teaching hardware based courses for large non-homogenous (Computer Science and Electronics students) class setting using existing e-learning system in the university to promote powerful, long-lasting learning outcomes. It is a blend of several approaches with an insightful goal to provoke deeper understanding in various topics in microprocessors and microcontrollers details, intended to teach the computer science students to learn low-level hardware interfacing, interrupt handling, and other microprocessors issues, as well as embedded systems through learning microcontrollers. Our methodology revolute around three steps: using visual simulators, incrementally weighted exercises, from easiest to hardest, and finally working on real hardware controllers. The proposed approaches developed for the course “Embedded Controller Technology”, but any other hardware based course can apply them. The approach comprises a 3-hour a week lecture and 2-hour a week laboratory, both taught in the 3rd semester. Imposing the approach leads to the overall improvement of the course quality: student satisfaction and interest, increased number of completed hardware projects and significant improvement in grade distribution and it has been observed that students feel better prepared to face the challenges to be found in their future professional activities.

Model-based Control of Automotive Engines and After-treatment Devices

As environmental requirements on automotive vehicle emissions have steadily increased over the last decades, embedded control technology to perform real-time management of the driver's requests has appeared as a key technology and has become ubiquitous. Today, every subsystem that is found under the hood is controlled, most often in closed-loop mode. A key factor in the development of a new engine or a new vehicle is the duration of its design cycle. The design and tuning of all the intricate control loops is very time-consuming. One of the main reasons for this is that tuning procedures are often used to compensate for certain un-modeled effects such as neglected couplings of dynamic variables. In this talk, we explain how models can be used to reduce expensive calibration time significantly. As will be shown in the light of several experiments (involving airpath, fuelpath, and after-treatment systems), simple models bring effective and practical solutions involving mature tools from nonlinear control theory.

Model-based Control of Automotive Engines and After-treatment Devices

As environmental requirements on automotive vehicle emissions have steadily increased over the last decades, embedded control technology to perform real-time management of the driver's requests has appeared as a key technology and has become ubiquitous. Today, every subsystem that is found under the hood is controlled, most often in closed-loop mode. A key factor in the development of a new engine or a new vehicle is the duration of its design cycle. The design and tuning of all the intricate control loops is very time-consuming. One of the main reasons for this is that tuning procedures are often used to compensate for certain un-modeled effects such as neglected couplings of dynamic variables. In this talk, we explain how models can be used to reduce expensive calibration time significantly. As will be shown in the light of several experiments (involving airpath, fuelpath, and after-treatment systems), simple models bring effective and practical solutions involving mature tools from nonlinear control theory.

The Intelligent Video Playback System Based on RFID Technology

With the rapid development of electronic information technology, traditional interpretation pattern in exhibition building and museum is developing towards digitization, information, intelligence, automation and multi functionality. A novel intelligent video playback system, which can be widely used in tourism and exhibition, is provided in this paper. The video playing system consists of radio frequency identification (RFID) module and video playback module. The novel system integrates advanced RFID technology, embedded control technology, and video playing technology. The RFID module identifies visitors, and selects the language and other information. The main chip of the RFID module card reader is MF RC522 which is working in frequency bands of 13.56 MHz, and the microcontroller of the module is Atmega8. C programming language was used to program microcontroller in order to realize the function of automatically reading. The video playback module realizes the function of playing video files and controlling RFID module. On the hardware design of the video playback module, the S3C2440 chip with ARM920T core was selected as the main control chip. The video playback module was developed by WinCE developing platform. Related drivers and application software were developed to control card reader, select language and to play the video file. The intelligent video playback system has several advantages such as: good real-time property, high portability and easy in maintenance. The system has its application prospect in exhibition and tourism.

Low cost quadrature signal resolver

The details of an inexpensive, flexible quadrature signal resolver are given. The unit employs inexpensive embedded controller technology and is suitable for use with linear or rotary encoders. The unit is easily programmed to perform a variety of quadrature signal analysis/decoding functions and is particularly suited to special applications that are not addressed by manufacturers.