Papers by Keyword: uC/OS-II

Abstract: In current education realm, the new technology terminal is essential for modern educational method. Thus, the embedded technology is focused and utilized to improve the level of education technology. In this paper, a kind of embedded terminal is designed for experimental class application, which is based on AVR-mega48, and the LCD, the standard keyboard, the nRF2401 wireless modules are integrated into the system. The whole system operates under the control of UC/OS-II system, which provides an excellent software platform for the future development of other modules.

Abstract: In this paper, we discuss the applications of UC/OS-II and DSP(digital signal processor) in area of harmonic analyzing. In this research, the FFT algorithm is employed, and the realization of FFT on DSP is discussed. The whole system is based on UC/OS-II operation system, which coordinate all the tasks about the system. The system based on DSP+ARM and UC/OS-II improve the reliability and real time quality. The hardware design and software design are proposed in this paper, with flow chart and part of routine codes shown.

Abstract: The uC_OS-II embedded real-time operation system is used to improve the original designed fuel supply system of a Stirling engine which governed by the electronic control system based on a rotating speed control method. Task modules for each level are built and the fail-safe modules are also improved in this paper. The developed fuel supply system is investigated through experiment, and test results show that the new real-time operating system works stably and realizes the fuel supply fast adjustment.

Abstract: At present, there are some shortcomings in tower crane protect device. In order to reduce the difficulty of the operation, and ensure the safety of the crane, we design this monitoring system. For the purpose of improve tower crane self-control ability and self-diagnosis ability .we propose a design of tower crane monitoring system , a combination of sensor technology and wireless technology. We choose the stm32 as the master chip, and choose uC/OS-II as the operating system. All kinds of tasks could coordinate with each other, and orderly operation. UCGUI is used to realize human-machine interface. It can display real-time operating parameters of the tower crane. The central monitoring room can monitor multiple tower cranes through wireless communication technology.

Abstract: More and more applications need The ability to customize the architecture to match the computation and the data flow of the application, so increasingly new system implementations based on reconfigurable computing are being considered. Reconfigurable computing has potential to accelerate a wide variety of applications; its main feature is the ability to perform computations in hardware to improve performance, while retaining the flexibility of software solutions. An operating system (OS) for reconfigurable computing uses new versions of algorithms for the scheduling, the operating system must decide how to allocate the hardware at run-time based on the status of the system. This paper discusses the scheduling algorithm for reconfigurable computing platform, covers two aspects of reconfigurable computing: architectures and design methods. The tasks are divided into two categories in this survey, consider the issues involved in reusing the configurable hardware during program execution. And improve μC/OS-II to manage the use of reconfigurable resources, responsible for task scheduling, helping the programmer to concentrate more on application development.

Abstract: This paper presents a low cost compact solution for a Remotely Operated Vehicle (ROV) control system. Both hardware architecture and software architecture are discussed. STM32F-1 series MCUs are used for sensor data acquisition [1], output calculation and actuator control. For software, a real-time OS uC/OS-II is embedded in the MCU [2]. The whole control system has been implemented on an observation ROV HIPPO. The result of tank test shows this kind of control system has good performance on maneuverability, stability, reliability and control accuracy. Furthermore, HIPPO has successfully served as a third-party vision provider in the lake trail of another ROV.

Abstract: The proposal of ARM-based online detecting system of storage battery was suggested for the need of precise control of the working voltage and temperature of base stations of China Mobile. In terms of hardware, ARM7-LPC2368 of NXP Semiconductor was chosen as the processor chip, and the online detecting system was constructed using three modules: information acquisition, kernel control and battery. As for software, our proposal adopted the top-down design philosophy and modularized designing method and also embedded uC/OS-II which significantly improved the utilization rate of CPU. At last, the system precisely met the requirements of the proposal by field tests at base station of China Mobile, thus, verified the feasibility of the proposal.

Abstract: The paper proposes an AC motor speed regulate system based on ARM. The system's hardware core is the LPC2131, in which processor successfully transplanted the μC/OS-II real-time operating system. In the form of task, each functional module of the system can be achieved on the processor LPC2131.The system is simple hardware circuit, software module to realize the complex control algorithms. Experiments show that the multi-task classify program is feasible on the embedded real-time operating system based on LPC2131 and μC / OS-II, it ensures the system's real-time, has good multi-task operating and transferring characteristics and improves the system stability and reliability.

Abstract: This paper aims to design the inverter control system of alternating current (AC) motors based on Advanced RISC Machines (ARM) and μC/OS-II. The system's hardware core is the LPC2131 in which processor successfully transplanted the μC/OS-II real-time operating system. In the form of task, each functional module of the system is achieved on the processor LPC2131. Testing and experiments show that the multi-task classify program is feasible on the embedded real-time operating system based on LPC2131 and μC/OS-II, it ensures the system's real-time, has good multi-task operating and transferring characteristics and improves the system stability and reliability.

Abstract: The application of uCOS-II and LabVIEW in the development of Stirling Engine fuel supply electric control system was described in this paper. In embedded system, a control program with multilayer structure was designed based on uCOS-II. In upper computer, a LabVIEW virtual instruments IDE was used to achieve features such as remote control, identify series number automatically, display and record signal in real-time. The operation of the whole control system was proved precisely and stability through experiment.